diff --git a/src/@iconify/build-icons.ts b/src/@iconify/build-icons.ts
index f6ced384..a4bdf8f2 100644
--- a/src/@iconify/build-icons.ts
+++ b/src/@iconify/build-icons.ts
@@ -264,6 +264,8 @@ const target = join(__dirname, 'icons-bundle.js');
   console.log(`Saved ${target} (${bundle.length} bytes)`)
 })().catch((err) => {
   console.error(err)
+  // 构建图标失败时必须终止构建，避免继续发布上一次遗留的超大 icons-bundle。
+  process.exitCode = 1
 })
 
 async function collectUsedIcons(rootDir: string): Promise<string[]> {
diff --git a/src/App.vue b/src/App.vue
index b8b76ab2..39d9d7cd 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -14,6 +14,8 @@ import PWAInstallPrompt from '@/components/PWAInstallPrompt.vue'
 import { themeManager } from '@/utils/themeManager'
 import { configureApexChartsTheme } from '@/utils/apexCharts'
 
+const LOGIN_WALLPAPER_ROUTE = '/login'
+
 // 生效主题
 const { global: globalTheme } = useTheme()
 let themeValue = localStorage.getItem('theme') || 'auto'
@@ -37,6 +39,7 @@ setI18nLanguage(localeValue as SupportedLocale)
 // 检查是否登录
 const authStore = useAuthStore()
 const isLogin = computed(() => authStore.token)
+const route = useRoute()
 
 // 全局设置store
 const globalSettingsStore = useGlobalSettingsStore()
@@ -48,6 +51,12 @@ const loginStateKey = computed(() => (isLogin.value ? 'logged-in' : 'logged-out'
 const backgroundImages = ref<string[]>([])
 const activeImageIndex = ref(0)
 const isTransparentTheme = computed(() => globalTheme.name.value === 'transparent')
+const shouldLoadBackgroundImages = computed(
+  () => (!isLogin.value && route.path === LOGIN_WALLPAPER_ROUTE) || (Boolean(isLogin.value) && isTransparentTheme.value),
+)
+let backgroundRetryTimer: number | null = null
+let backgroundRequestController: AbortController | null = null
+let authenticatedStateTimer: number | null = null
 
 function getStoredNumber(key: string, fallback: number, min: number, max: number) {
   const parsed = Number.parseFloat(localStorage.getItem(key) || '')
@@ -109,9 +118,10 @@ function updateHtmlThemeAttribute(themeName: string) {
 // 获取背景图片
 async function fetchBackgroundImages() {
   try {
-    const controller = new AbortController()
+    backgroundRequestController?.abort()
+    backgroundRequestController = new AbortController()
     backgroundImages.value = await api.get(`/login/wallpapers`, {
-      signal: controller.signal,
+      signal: backgroundRequestController.signal,
     })
     activeImageIndex.value = 0
   } catch (e) {
@@ -153,6 +163,42 @@ function startBackgroundRotation() {
   }
 }
 
+function stopBackgroundLoading() {
+  backgroundRequestController?.abort()
+  backgroundRequestController = null
+
+  if (backgroundRetryTimer) {
+    window.clearTimeout(backgroundRetryTimer)
+    backgroundRetryTimer = null
+  }
+
+  removeBackgroundTimer('background-rotation')
+}
+
+async function initializeAuthenticatedState() {
+  if (!isLogin.value) return
+
+  try {
+    globalLoadingStateManager.setLoadingState('global-settings', true)
+    await globalSettingsStore.initialize()
+    await globalSettingsStore.loadUserSettings()
+  } finally {
+    globalLoadingStateManager.setLoadingState('global-settings', false)
+  }
+}
+
+function scheduleAuthenticatedStateInitialization() {
+  if (authenticatedStateTimer) {
+    window.clearTimeout(authenticatedStateTimer)
+  }
+
+  // 登录后会立刻发生路由切换，稍后再拉取设置可避开导航中止请求。
+  authenticatedStateTimer = window.setTimeout(() => {
+    authenticatedStateTimer = null
+    initializeAuthenticatedState()
+  }, 150)
+}
+
 // 添加logo动画效果并延迟移除加载界面
 function animateAndRemoveLoader() {
   const loadingBg = document.querySelector('#loading-bg') as HTMLElement
@@ -175,8 +221,6 @@ async function removeLoadingWithStateCheck() {
   try {
     // 设置各个组件的加载状态
     globalLoadingStateManager.setLoadingState('pwa-state', true)
-    globalLoadingStateManager.setLoadingState('global-settings', true)
-    globalLoadingStateManager.setLoadingState('background-images', true)
 
     // 静默检查PWA状态恢复
     const pwaController = (window as any).pwaStateController
@@ -185,22 +229,7 @@ async function removeLoadingWithStateCheck() {
     }
     globalLoadingStateManager.setLoadingState('pwa-state', false)
 
-    // 并行加载关键资源
-    await Promise.all([
-      globalSettingsStore.initialize().then(async () => {
-        // 如果已登录，加载用户相关设置
-        if (isLogin.value) {
-          await globalSettingsStore.loadUserSettings()
-        }
-        globalLoadingStateManager.setLoadingState('global-settings', false)
-      }),
-      new Promise(resolve => {
-        setTimeout(() => {
-          globalLoadingStateManager.setLoadingState('background-images', false)
-          resolve(void 0)
-        }, 50)
-      }),
-    ])
+    await initializeAuthenticatedState()
 
     // 等待所有加载完成
     await globalLoadingStateManager.waitForAllComplete()
@@ -209,7 +238,9 @@ async function removeLoadingWithStateCheck() {
     animateAndRemoveLoader()
 
     // 检查未读消息
-    checkAndEmitUnreadMessages()
+    if (isLogin.value) {
+      checkAndEmitUnreadMessages()
+    }
   } catch (error) {
     // 即使出错也要移除加载界面
     globalLoadingStateManager.reset()
@@ -228,7 +259,8 @@ async function loadBackgroundImages(retryCount = 0) {
     if (retryCount < maxRetries) {
       const baseDelay = isAbortError ? 1000 : 3000
       const retryDelay = Math.min(baseDelay * Math.pow(2, retryCount), 10000)
-      setTimeout(() => {
+      backgroundRetryTimer = window.setTimeout(() => {
+        backgroundRetryTimer = null
         loadBackgroundImages(retryCount + 1)
       }, retryDelay)
     }
@@ -264,20 +296,51 @@ onMounted(async () => {
     },
   )
 
-  // 加载背景图片
-  loadBackgroundImages()
+  // 登录页壁纸仅在未登录登录页需要，避免其他首屏额外发起图片列表请求。
+  watch(
+    shouldLoadBackgroundImages,
+    shouldLoad => {
+      stopBackgroundLoading()
+      if (shouldLoad) {
+        loadBackgroundImages()
+      } else if (!isTransparentTheme.value) {
+        backgroundImages.value = []
+      }
+    },
+    { immediate: true },
+  )
 
   // 使用优化后的加载界面移除逻辑
   ensureRenderComplete(() => {
     nextTick(removeLoadingWithStateCheck)
   })
   // 启动心跳
-  startHeartbeat()
+  if (isLogin.value) {
+    startHeartbeat()
+  }
+
+  // 登录状态可能在当前单页会话中变化，这里按需补齐登录后初始化和心跳。
+  watch(isLogin, loggedIn => {
+    if (loggedIn) {
+      startHeartbeat()
+      scheduleAuthenticatedStateInitialization()
+    } else {
+      if (authenticatedStateTimer) {
+        window.clearTimeout(authenticatedStateTimer)
+        authenticatedStateTimer = null
+      }
+      stopHeartbeat()
+    }
+  })
 })
 
 onUnmounted(() => {
   // 清除背景轮换定时器
-  removeBackgroundTimer('background-rotation')
+  stopBackgroundLoading()
+  if (authenticatedStateTimer) {
+    window.clearTimeout(authenticatedStateTimer)
+    authenticatedStateTimer = null
+  }
   // 停止心跳
   stopHeartbeat()
 })
diff --git a/src/components/cards/FilterRuleGroupCard.vue b/src/components/cards/FilterRuleGroupCard.vue
index 0491b43e..00ef84d7 100644
--- a/src/components/cards/FilterRuleGroupCard.vue
+++ b/src/components/cards/FilterRuleGroupCard.vue
@@ -1,10 +1,8 @@
 <script lang="ts" setup>
-import draggable from 'vuedraggable'
 import { copyToClipboard } from '@/@core/utils/navigator'
 import { CustomRule, FilterRuleGroup } from '@/api/types'
 import FilterRuleCard from '@/components/cards/FilterRuleCard.vue'
 import { useToast } from 'vue-toastification'
-import ImportCodeDialog from '@/components/dialog/ImportCodeDialog.vue'
 import filter_group_svg from '@images/svg/filter-group.svg'
 import { cloneDeep } from 'lodash-es'
 import { useI18n } from 'vue-i18n'
@@ -16,6 +14,10 @@ const display = useDisplay()
 // 获取i18n实例
 const { t } = useI18n()
 
+// 规则组详情弹窗内才需要拖拽和导入代码，避免规则组卡片列表首屏带入重交互依赖。
+const Draggable = defineAsyncComponent(() => import('vuedraggable').then(module => module.default))
+const ImportCodeDialog = defineAsyncComponent(() => import('@/components/dialog/ImportCodeDialog.vue'))
+
 // 输入参数
 const props = defineProps({
   // 单个规则组
@@ -273,7 +275,7 @@ function onClose() {
           </VRow>
         </VCardItem>
         <VCardText>
-          <draggable
+          <Draggable
             v-model="filterRuleCards"
             handle=".cursor-move"
             item-key="pri"
@@ -291,7 +293,7 @@ function onClose() {
                 @close="filterCardClose(element.pri)"
               />
             </template>
-          </draggable>
+          </Draggable>
           <div class="text-center" v-if="filterRuleCards.length == 0">{{ t('filterRule.add') }}</div>
         </VCardText>
         <VCardActions class="pt-3">
diff --git a/src/components/cards/PluginCard.vue b/src/components/cards/PluginCard.vue
index 471dd335..40815f4c 100644
--- a/src/components/cards/PluginCard.vue
+++ b/src/components/cards/PluginCard.vue
@@ -11,13 +11,15 @@ import VersionHistory from '@/components/misc/VersionHistory.vue'
 import ProgressDialog from '../dialog/ProgressDialog.vue'
 import PluginConfigDialog from '../dialog/PluginConfigDialog.vue'
 import PluginDataDialog from '../dialog/PluginDataDialog.vue'
-import LoggingView from '@/views/system/LoggingView.vue'
 import { useI18n } from 'vue-i18n'
 import { useDisplay } from 'vuetify'
 
 // 显示器宽度
 const display = useDisplay()
 
+// 插件日志面板只有点击“查看日志”时才需要，延后加载可减轻插件列表首屏。
+const LoggingView = defineAsyncComponent(() => import('@/views/system/LoggingView.vue'))
+
 // 输入参数
 const props = defineProps({
   plugin: Object as PropType<Plugin>,
diff --git a/src/components/cards/UserCard.vue b/src/components/cards/UserCard.vue
index d6685d51..84afd3eb 100644
--- a/src/components/cards/UserCard.vue
+++ b/src/components/cards/UserCard.vue
@@ -123,10 +123,10 @@ onMounted(() => {
       'transition-transform duration-300 hover:-translate-y-1',
       !props.user.is_active ? 'opacity-85 bg-surface-lighten-1' : '',
     ]"
-    class="flex flex-column"
+    class="user-card flex flex-column h-full"
     @click="userEditDialog = true"
   >
-    <div class="flex-grow">
+    <div class="user-card__body flex-grow flex-grow-1">
       <!-- 用户头像和基本信息 -->
       <VCardItem :class="[user.is_superuser ? 'admin-header' : '']">
         <template v-slot:prepend>
@@ -247,7 +247,7 @@ onMounted(() => {
     </div>
     <!-- 独立的邮箱显示 -->
     <VDivider class="mx-4" />
-    <div>
+    <div class="user-card__footer">
       <VCardText class="d-flex align-center py-2 px-4 text-medium-emphasis">
         <VIcon icon="mdi-email-outline" size="small" color="primary" class="mr-2 opacity-70" />
         <span class="text-body-2 truncate">{{ user.email || t('user.noEmail') }}</span>
@@ -308,6 +308,16 @@ onMounted(() => {
 </template>
 
 <style scoped>
+.user-card {
+  block-size: 100%;
+}
+
+/* 让邮箱和订阅统计固定在卡片底部，保证同一行用户卡片视觉等高。 */
+.user-card__footer {
+  flex-shrink: 0;
+  margin-block-start: auto;
+}
+
 .admin-decoration {
   position: absolute;
   z-index: 1;
diff --git a/src/components/misc/DashboardElement.vue b/src/components/misc/DashboardElement.vue
index 46c426b7..b639232b 100644
--- a/src/components/misc/DashboardElement.vue
+++ b/src/components/misc/DashboardElement.vue
@@ -1,21 +1,70 @@
 <script setup lang="ts">
+import { h, resolveComponent } from 'vue'
 import api from '@/api'
 import { DashboardItem } from '@/api/types'
-import AnalyticsMediaStatistic from '@/views/dashboard/AnalyticsMediaStatistic.vue'
-import AnalyticsScheduler from '@/views/dashboard/AnalyticsScheduler.vue'
-import AnalyticsSpeed from '@/views/dashboard/AnalyticsSpeed.vue'
-import AnalyticsStorage from '@/views/dashboard/AnalyticsStorage.vue'
-import AnalyticsWeeklyOverview from '@/views/dashboard/AnalyticsWeeklyOverview.vue'
-import AnalyticsCpu from '@/views/dashboard/AnalyticsCpu.vue'
-import AnalyticsMemory from '@/views/dashboard/AnalyticsMemory.vue'
-import AnalyticsNetwork from '@/views/dashboard/AnalyticsNetwork.vue'
-import MediaServerLatest from '@/views/dashboard/MediaServerLatest.vue'
-import MediaServerLibrary from '@/views/dashboard/MediaServerLibrary.vue'
-import MediaServerPlaying from '@/views/dashboard/MediaServerPlaying.vue'
 import DashboardRender from '@/components/render/DashboardRender.vue'
 import { isNullOrEmptyObject } from '@/@core/utils'
 import { loadRemoteComponent } from '@/utils/federationLoader'
 
+const DashboardSkeleton = {
+  setup() {
+    const SkeletonLoader = resolveComponent('VSkeletonLoader')
+
+    // 用 render 函数避免 runtime-only Vue 为异步 loadingComponent 解析模板。
+    return () => h(SkeletonLoader, { type: 'card' })
+  },
+}
+
+const asyncDashboardOptions = {
+  loadingComponent: DashboardSkeleton,
+}
+
+// 内置仪表盘按需加载，关闭的卡片不再挤进 dashboard 首屏 chunk。
+const AnalyticsStorage = defineAsyncComponent({
+  loader: () => import('@/views/dashboard/AnalyticsStorage.vue'),
+  ...asyncDashboardOptions,
+})
+const AnalyticsMediaStatistic = defineAsyncComponent({
+  loader: () => import('@/views/dashboard/AnalyticsMediaStatistic.vue'),
+  ...asyncDashboardOptions,
+})
+const AnalyticsWeeklyOverview = defineAsyncComponent({
+  loader: () => import('@/views/dashboard/AnalyticsWeeklyOverview.vue'),
+  ...asyncDashboardOptions,
+})
+const AnalyticsSpeed = defineAsyncComponent({
+  loader: () => import('@/views/dashboard/AnalyticsSpeed.vue'),
+  ...asyncDashboardOptions,
+})
+const AnalyticsScheduler = defineAsyncComponent({
+  loader: () => import('@/views/dashboard/AnalyticsScheduler.vue'),
+  ...asyncDashboardOptions,
+})
+const AnalyticsCpu = defineAsyncComponent({
+  loader: () => import('@/views/dashboard/AnalyticsCpu.vue'),
+  ...asyncDashboardOptions,
+})
+const AnalyticsMemory = defineAsyncComponent({
+  loader: () => import('@/views/dashboard/AnalyticsMemory.vue'),
+  ...asyncDashboardOptions,
+})
+const AnalyticsNetwork = defineAsyncComponent({
+  loader: () => import('@/views/dashboard/AnalyticsNetwork.vue'),
+  ...asyncDashboardOptions,
+})
+const MediaServerLibrary = defineAsyncComponent({
+  loader: () => import('@/views/dashboard/MediaServerLibrary.vue'),
+  ...asyncDashboardOptions,
+})
+const MediaServerPlaying = defineAsyncComponent({
+  loader: () => import('@/views/dashboard/MediaServerPlaying.vue'),
+  ...asyncDashboardOptions,
+})
+const MediaServerLatest = defineAsyncComponent({
+  loader: () => import('@/views/dashboard/MediaServerLatest.vue'),
+  ...asyncDashboardOptions,
+})
+
 // 输入参数
 const props = defineProps({
   // 仪表板配置
@@ -53,9 +102,7 @@ const dynamicPluginComponent = defineAsyncComponent({
     }
   },
   // 加载中显示的组件
-  loadingComponent: {
-    template: '<VSkeletonLoader type="card"></VSkeletonLoader>',
-  },
+  loadingComponent: DashboardSkeleton,
   // 添加错误处理
   errorComponent: {
     template: `
diff --git a/src/layouts/components/ShortcutBar.vue b/src/layouts/components/ShortcutBar.vue
index 306cf090..4893715b 100644
--- a/src/layouts/components/ShortcutBar.vue
+++ b/src/layouts/components/ShortcutBar.vue
@@ -1,13 +1,4 @@
 <script lang="ts" setup>
-import NameTestView from '@/views/system/NameTestView.vue'
-import NetTestView from '@/views/system/NetTestView.vue'
-import LoggingView from '@/views/system/LoggingView.vue'
-import RuleTestView from '@/views/system/RuleTestView.vue'
-import ModuleTestView from '@/views/system/ModuleTestView.vue'
-import MessageView from '@/views/system/MessageView.vue'
-import WordsView from '@/views/system/WordsView.vue'
-import CacheView from '@/views/system/CacheView.vue'
-import AccountSettingService from '@/views/system/ServiceView.vue'
 import api from '@/api'
 import { useDisplay } from 'vuetify'
 import { getQueryValue } from '@/@core/utils'
@@ -26,6 +17,17 @@ const { t } = useI18n()
 // 显示器宽度
 const display = useDisplay()
 
+// 快捷工具只在弹窗打开时使用，按需加载避免默认布局首屏带上所有 system 视图。
+const NameTestView = defineAsyncComponent(() => import('@/views/system/NameTestView.vue'))
+const NetTestView = defineAsyncComponent(() => import('@/views/system/NetTestView.vue'))
+const LoggingView = defineAsyncComponent(() => import('@/views/system/LoggingView.vue'))
+const RuleTestView = defineAsyncComponent(() => import('@/views/system/RuleTestView.vue'))
+const ModuleTestView = defineAsyncComponent(() => import('@/views/system/ModuleTestView.vue'))
+const MessageView = defineAsyncComponent(() => import('@/views/system/MessageView.vue'))
+const WordsView = defineAsyncComponent(() => import('@/views/system/WordsView.vue'))
+const CacheView = defineAsyncComponent(() => import('@/views/system/CacheView.vue'))
+const AccountSettingService = defineAsyncComponent(() => import('@/views/system/ServiceView.vue'))
+
 // App捷径
 const appsMenu = ref(false)
 
diff --git a/src/main.ts b/src/main.ts
index bfb8ca6c..a81d1051 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -13,32 +13,47 @@ import i18n from '@/plugins/i18n'
 import App from '@/App.vue'
 import { PerfectScrollbarPlugin } from 'vue3-perfect-scrollbar'
 
-// 4. 工具函数和其他辅助模块
-import { loadRemoteComponents } from './utils/federationLoader'
-
-// 5. 其他插件和功能模块
+// 4. 其他插件和功能模块
 import Toast from 'vue-toastification'
 import ConfirmDialog from '@/composables/useConfirm'
 import { configureApexChartsTheme } from '@/utils/apexCharts'
 
-// 6. 注册自定义组件
+// 5. 注册自定义组件
 import DialogCloseBtn from '@/@core/components/DialogCloseBtn.vue'
 import ScrollToTopBtn from '@/@core/components/ScrollToTopBtn.vue'
 import PageContentTitle from './@core/components/PageContentTitle.vue'
 
-// 7. 样式文件 - 合并为单一导入
+// 6. 样式文件 - 合并为单一导入
 import '@/styles/main.scss'
 
-// 8. 状态恢复插件
+// 7. 状态恢复插件
 import stateRestorePlugin from '@/plugins/stateRestore'
 
-// 9. 后台优化工具
-import { backgroundManager } from '@/utils/backgroundManager'
-import { sseManagerSingleton } from '@/utils/sseManager'
+function runWhenBrowserIdle(callback: () => void, timeout = 1500) {
+  const requestIdle = globalThis.requestIdleCallback
+  if (requestIdle) {
+    requestIdle(callback, { timeout })
+    return
+  }
 
-const iconBundlePromise = import('@/@iconify/icons-bundle').catch(error => {
-  console.error('Failed to load icon bundle', error)
-})
+  globalThis.setTimeout(callback, 0)
+}
+
+function loadIconBundle() {
+  import('@/@iconify/icons-bundle').catch(error => {
+    console.error('Failed to load icon bundle', error)
+  })
+}
+
+function loadRemoteComponentsAfterLogin() {
+  import('./utils/federationLoader')
+    .then(({ loadRemoteComponents }) => loadRemoteComponents())
+    .catch(error => {
+      console.error('Failed to load remote components', error)
+    })
+}
+
+let remoteComponentsInitialized = false
 
 const AsyncAceEditor = defineAsyncComponent(async () => {
   await import('./ace-config')
@@ -70,11 +85,6 @@ const app = createApp(App)
 // 1. 注册pinia
 app.use(pinia)
 
-// 异步加载远程组件（不阻塞启动）
-loadRemoteComponents().catch(error => {
-  console.error('Failed to load remote components', error)
-})
-
 // 2. 注册 UI 框架
 app.use(vuetify)
 
@@ -105,11 +115,20 @@ app
   .use(ConfirmDialog)
   .use(i18n)
 
-await iconBundlePromise
 app.mount('#app')
 
-// 页面卸载时清理后台管理器
-window.addEventListener('beforeunload', () => {
-  backgroundManager.destroy()
-  sseManagerSingleton.closeAllManagers()
+// 图标全集很大，延后到首屏挂载后的空闲时间加载，避免阻塞登录页首次渲染。
+runWhenBrowserIdle(loadIconBundle)
+
+// 插件远程入口只在登录后有用，延后初始化可以减少未登录首屏请求和解析成本。
+router.isReady().then(() => {
+  const loadIfAuthenticated = () => {
+    if (!remoteComponentsInitialized && pinia.state.value.auth?.token) {
+      remoteComponentsInitialized = true
+      runWhenBrowserIdle(loadRemoteComponentsAfterLogin)
+    }
+  }
+
+  loadIfAuthenticated()
+  router.afterEach(loadIfAuthenticated)
 })
diff --git a/src/pages/login.vue b/src/pages/login.vue
index f2138cd2..cca384a7 100644
--- a/src/pages/login.vue
+++ b/src/pages/login.vue
@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import { VForm } from 'vuetify/components/VForm'
-import { useAuthStore, useUserStore, useGlobalSettingsStore } from '@/stores'
+import { useAuthStore, useUserStore } from '@/stores'
 import { authState, userState } from '@/stores/types'
 import { requiredValidator } from '@/@validators'
 import api from '@/api'
@@ -20,9 +20,6 @@ const { t } = useI18n()
 const authStore = useAuthStore()
 //用户 Store
 const userStore = useUserStore()
-// 全局设置 Store
-const globalSettingsStore = useGlobalSettingsStore()
-
 // 获取有权限的菜单
 const navMenus = computed(() => getNavMenus(t))
 
@@ -373,9 +370,6 @@ async function handleLoginSuccess(response: any) {
   authStore.login(authPayLoad)
   userStore.loginUser(userPayload)
 
-  // 登录后加载用户相关的全局设置
-  await globalSettingsStore.loadUserSettings()
-
   await afterLogin(userPayload.superUser, userPayload, filteredMenus)
 }
 
diff --git a/src/pages/setting.vue b/src/pages/setting.vue
index 4d9b18ee..5dae505b 100644
--- a/src/pages/setting.vue
+++ b/src/pages/setting.vue
@@ -1,13 +1,6 @@
 <script lang="ts" setup>
 import { useRoute } from 'vue-router'
 import router from '@/router'
-import AccountSettingNotification from '@/views/setting/AccountSettingNotification.vue'
-import AccountSettingSite from '@/views/setting/AccountSettingSite.vue'
-import AccountSettingSearch from '@/views/setting/AccountSettingSearch.vue'
-import AccountSettingSubscribe from '@/views/setting/AccountSettingSubscribe.vue'
-import AccountSettingSystem from '@/views/setting/AccountSettingSystem.vue'
-import AccountSettingDirectory from '@/views/setting/AccountSettingDirectory.vue'
-import AccountSettingRule from '@/views/setting/AccountSettingRule.vue'
 import { getSettingTabs } from '@/router/i18n-menu'
 import { useDynamicHeaderTab } from '@/composables/useDynamicHeaderTab'
 
@@ -17,6 +10,15 @@ const route = useRoute()
 const activeTab = ref((route.query.tab as string) || '')
 const settingTabs = computed(() => getSettingTabs(t))
 
+// 设置页的每个大类都很重，按标签页拆包，避免进入设置时一次性下载全部配置面板。
+const AccountSettingSystem = defineAsyncComponent(() => import('@/views/setting/AccountSettingSystem.vue'))
+const AccountSettingDirectory = defineAsyncComponent(() => import('@/views/setting/AccountSettingDirectory.vue'))
+const AccountSettingSite = defineAsyncComponent(() => import('@/views/setting/AccountSettingSite.vue'))
+const AccountSettingRule = defineAsyncComponent(() => import('@/views/setting/AccountSettingRule.vue'))
+const AccountSettingSearch = defineAsyncComponent(() => import('@/views/setting/AccountSettingSearch.vue'))
+const AccountSettingSubscribe = defineAsyncComponent(() => import('@/views/setting/AccountSettingSubscribe.vue'))
+const AccountSettingNotification = defineAsyncComponent(() => import('@/views/setting/AccountSettingNotification.vue'))
+
 // 使用动态标签页
 const { registerHeaderTab } = useDynamicHeaderTab()
 
diff --git a/src/pages/subscribe.vue b/src/pages/subscribe.vue
index cc137b18..6dfa7942 100644
--- a/src/pages/subscribe.vue
+++ b/src/pages/subscribe.vue
@@ -1,10 +1,6 @@
 <script setup lang="ts">
 import { debounce } from 'lodash-es'
 import SubscribeListView from '@/views/subscribe/SubscribeListView.vue'
-import SubscribePopularView from '@/views/subscribe/SubscribePopularView.vue'
-import SubscribeShareView from '@/views/subscribe/SubscribeShareView.vue'
-import SubscribeEditDialog from '@/components/dialog/SubscribeEditDialog.vue'
-import SubscribeShareStatisticsDialog from '@/components/dialog/SubscribeShareStatisticsDialog.vue'
 import { useI18n } from 'vue-i18n'
 import { useDynamicHeaderTab } from '@/composables/useDynamicHeaderTab'
 import { useDynamicButton } from '@/composables/useDynamicButton'
@@ -20,6 +16,14 @@ const route = useRoute()
 const userStore = useUserStore()
 const { appMode } = usePWA()
 
+// 非默认标签页和弹窗按需加载，避免进入订阅列表时同步下载分享/统计相关代码。
+const SubscribePopularView = defineAsyncComponent(() => import('@/views/subscribe/SubscribePopularView.vue'))
+const SubscribeShareView = defineAsyncComponent(() => import('@/views/subscribe/SubscribeShareView.vue'))
+const SubscribeEditDialog = defineAsyncComponent(() => import('@/components/dialog/SubscribeEditDialog.vue'))
+const SubscribeShareStatisticsDialog = defineAsyncComponent(
+  () => import('@/components/dialog/SubscribeShareStatisticsDialog.vue'),
+)
+
 const subType = route.meta.subType?.toString()
 const subId = ref(route.query.id as string)
 const activeTab = ref((route.query.tab as string) || '')
diff --git a/src/utils/backgroundManager.ts b/src/utils/backgroundManager.ts
index fdc625be..72548429 100644
--- a/src/utils/backgroundManager.ts
+++ b/src/utils/backgroundManager.ts
@@ -11,56 +11,61 @@ export class BackgroundManager {
     runInBackground?: boolean
   }> = new Map()
   
+  private readonly activityEvents = ['mousedown', 'mousemove', 'keypress', 'scroll', 'touchstart', 'click']
+  private readonly handleVisibilityChange = () => {
+    const wasBackground = this.isBackground
+    this.isBackground = document.hidden
+
+    if (this.isBackground && !wasBackground) {
+      console.log('Background: 进入后台，暂停定时器')
+      this.pauseAllTimers()
+    } else if (!this.isBackground && wasBackground) {
+      console.log('Background: 回到前台，恢复定时器')
+      this.resumeAllTimers()
+    }
+  }
+  private readonly handleBeforeUnload = () => {
+    this.destroy()
+  }
+  private readonly updateActivity = () => {
+    this.lastActivityTime = Date.now()
+  }
+
   private isBackground = false
   private isDestroyed = false
   private lastActivityTime = Date.now()
-  private activityTimer: ReturnType<typeof setInterval> | null = null
+  private isInitialized = false
 
-  constructor() {
+  private ensureInitialized() {
+    if (this.isInitialized || this.isDestroyed) return
+
+    this.isInitialized = true
+    this.isBackground = document.hidden
     this.setupVisibilityListener()
     this.setupActivityTracking()
   }
 
   private setupVisibilityListener() {
-    document.addEventListener('visibilitychange', () => {
-      const wasBackground = this.isBackground
-      this.isBackground = document.hidden
-      
-      if (this.isBackground && !wasBackground) {
-        console.log('Background: 进入后台，暂停定时器')
-        this.pauseAllTimers()
-      } else if (!this.isBackground && wasBackground) {
-        console.log('Background: 回到前台，恢复定时器')
-        this.resumeAllTimers()
-      }
-    })
-
-    // 页面卸载时清理
-    window.addEventListener('beforeunload', () => {
-      this.destroy()
-    })
+    document.addEventListener('visibilitychange', this.handleVisibilityChange)
+    window.addEventListener('beforeunload', this.handleBeforeUnload)
   }
 
   private setupActivityTracking() {
-    // 跟踪用户活动
-    const events = ['mousedown', 'mousemove', 'keypress', 'scroll', 'touchstart', 'click']
-    
-    const updateActivity = () => {
-      this.lastActivityTime = Date.now()
-    }
-
-    events.forEach(event => {
-      document.addEventListener(event, updateActivity, { passive: true })
+    // 按需跟踪用户活动，避免应用启动时就注册一批全局监听。
+    this.activityEvents.forEach(event => {
+      document.addEventListener(event, this.updateActivity, { passive: true })
     })
+  }
 
-    // 定期更新活动状态
-    this.activityTimer = setInterval(() => {
-      // 如果超过5分钟没有活动，可以考虑减少后台活动
-      const inactiveTime = Date.now() - this.lastActivityTime
-      if (inactiveTime > 5 * 60 * 1000) {
-        console.log('Background: 用户长时间不活跃')
-      }
-    }, 60000) // 每分钟检查一次
+  private removeLifecycleListeners() {
+    if (!this.isInitialized) return
+
+    document.removeEventListener('visibilitychange', this.handleVisibilityChange)
+    window.removeEventListener('beforeunload', this.handleBeforeUnload)
+    this.activityEvents.forEach(event => {
+      document.removeEventListener(event, this.updateActivity)
+    })
+    this.isInitialized = false
   }
 
   /**
@@ -76,6 +81,9 @@ export class BackgroundManager {
     } = {}
   ) {
     const { runInBackground = false, skipInitialRun = false } = options
+
+    if (this.isDestroyed) return
+    this.ensureInitialized()
     
     this.removeTimer(id)
     
@@ -122,6 +130,11 @@ export class BackgroundManager {
       }
       this.timers.delete(id)
       console.log(`Background: 移除定时器 ${id}`)
+
+      // 没有任务时释放监听，首屏只导入模块不会产生常驻开销。
+      if (this.timers.size === 0) {
+        this.removeLifecycleListeners()
+      }
     }
   }
 
@@ -237,11 +250,8 @@ export class BackgroundManager {
     })
     this.timers.clear()
 
-    // 清理活动跟踪定时器
-    if (this.activityTimer) {
-      clearInterval(this.activityTimer)
-      this.activityTimer = null
-    }
+    // 清理按需注册的生命周期与活动监听
+    this.removeLifecycleListeners()
 
     console.log('Background: 管理器已销毁')
   }
@@ -273,4 +283,4 @@ export function removeBackgroundTimer(id: string) {
 
 export function getBackgroundTimerStatus(id: string) {
   return backgroundManager.getTimerStatus(id)
-}
\ No newline at end of file
+}
diff --git a/src/views/plugin/PluginCardListView.vue b/src/views/plugin/PluginCardListView.vue
index 517fdaf3..8b699771 100644
--- a/src/views/plugin/PluginCardListView.vue
+++ b/src/views/plugin/PluginCardListView.vue
@@ -1,15 +1,12 @@
 <script lang="ts" setup>
-import draggable from 'vuedraggable'
 import { useToast } from 'vue-toastification'
 import api from '@/api'
 import type { Plugin } from '@/api/types'
 import NoDataFound from '@/components/NoDataFound.vue'
-import PluginAppCard from '@/components/cards/PluginAppCard.vue'
 import { getLogoUrl } from '@/utils/imageUtils'
 import { useDisplay } from 'vuetify'
 import { isNullOrEmptyObject } from '@/@core/utils'
 import { getPluginTabs } from '@/router/i18n-menu'
-import PluginMarketSettingDialog from '@/components/dialog/PluginMarketSettingDialog.vue'
 import { useDynamicButton } from '@/composables/useDynamicButton'
 import { useI18n } from 'vue-i18n'
 import PluginMixedSortCard from '@/components/cards/PluginMixedSortCard.vue'
@@ -22,6 +19,11 @@ const { t } = useI18n()
 
 const route = useRoute()
 
+// 市场卡片、拖拽排序和市场设置只在对应标签/操作中需要，延迟到真正使用时加载。
+const Draggable = defineAsyncComponent(() => import('vuedraggable').then(module => module.default))
+const PluginAppCard = defineAsyncComponent(() => import('@/components/cards/PluginAppCard.vue'))
+const PluginMarketSettingDialog = defineAsyncComponent(() => import('@/components/dialog/PluginMarketSettingDialog.vue'))
+
 // 显示器宽度
 const display = useDisplay()
 
@@ -1536,7 +1538,7 @@ function onDragStartPlugin(evt: any) {
               <!-- 混合排序列表（文件夹和插件） -->
               <template v-if="!currentFolder">
                 <!-- 主列表：使用draggable进行混合排序 -->
-                <draggable
+                <Draggable
                   v-if="canDragSort"
                   v-model="mixedSortList"
                   @end="saveMixedSortOrder"
@@ -1565,7 +1567,7 @@ function onDragStartPlugin(evt: any) {
                       @drop-to-folder="(event, folderName) => handleDropToFolder(event, folderName)"
                     />
                   </template>
-                </draggable>
+                </Draggable>
                 <ProgressiveCardGrid
                   v-else-if="shouldVirtualizeInstalledMainList"
                   :items="mixedSortList"
@@ -1598,7 +1600,7 @@ function onDragStartPlugin(evt: any) {
 
               <template v-else>
                 <!-- 文件夹内：使用draggable排序 + 移出按钮 -->
-                <draggable
+                <Draggable
                   v-if="canDragSort"
                   v-model="draggableFolderPlugins"
                   @end="saveFolderPluginOrder"
@@ -1624,7 +1626,7 @@ function onDragStartPlugin(evt: any) {
                       @remove-from-folder="removeFromFolder"
                     />
                   </template>
-                </draggable>
+                </Draggable>
                 <ProgressiveCardGrid
                   v-else-if="shouldVirtualizeInstalledFolderList"
                   :items="draggableFolderPlugins"
diff --git a/src/views/setting/AccountSettingDirectory.vue b/src/views/setting/AccountSettingDirectory.vue
index b0e9c81a..1824db9a 100644
--- a/src/views/setting/AccountSettingDirectory.vue
+++ b/src/views/setting/AccountSettingDirectory.vue
@@ -1,14 +1,10 @@
 <!-- eslint-disable sonarjs/no-duplicate-string -->
 <script lang="ts" setup>
 import { useToast } from 'vue-toastification'
-import draggable from 'vuedraggable'
-import { VRow } from 'vuetify/lib/components/index.mjs'
 import api from '@/api'
 import { TransferDirectoryConf, StorageConf } from '@/api/types'
 import DirectoryCard from '@/components/cards/DirectoryCard.vue'
 import StorageCard from '@/components/cards/StorageCard.vue'
-import ProgressDialog from '@/components/dialog/ProgressDialog.vue'
-import CategoryEditDialog from '@/components/dialog/CategoryEditDialog.vue'
 import { useI18n } from 'vue-i18n'
 import { useTheme } from 'vuetify'
 import { storageAttributes } from '@/api/constants'
@@ -16,6 +12,11 @@ import { storageAttributes } from '@/api/constants'
 const { t } = useI18n()
 const { global: globalTheme } = useTheme()
 
+// 拖拽排序和分类编辑弹窗按需加载，避免设置框架预加载目录页时带上这些交互依赖。
+const Draggable = defineAsyncComponent(() => import('vuedraggable').then(module => module.default))
+const ProgressDialog = defineAsyncComponent(() => import('@/components/dialog/ProgressDialog.vue'))
+const CategoryEditDialog = defineAsyncComponent(() => import('@/components/dialog/CategoryEditDialog.vue'))
+
 // 所有下载目录
 const directories = ref<TransferDirectoryConf[]>([])
 
@@ -264,7 +265,7 @@ onMounted(() => {
           <VCardSubtitle>{{ t('setting.directory.storageDesc') }}</VCardSubtitle>
         </VCardItem>
         <VCardText>
-          <draggable
+          <Draggable
             v-model="storages"
             handle=".cursor-move"
             item-key="name"
@@ -274,7 +275,7 @@ onMounted(() => {
             <template #item="{ element }">
               <StorageCard :storage="element" @close="removeStorage(element)" @done="loadStorages" />
             </template>
-          </draggable>
+          </Draggable>
         </VCardText>
         <VCardText>
           <VForm @submit.prevent="() => {}">
@@ -309,7 +310,7 @@ onMounted(() => {
           <VCardSubtitle>{{ t('setting.directory.directoryDesc') }}</VCardSubtitle>
         </VCardItem>
         <VCardText>
-          <draggable
+          <Draggable
             v-model="directories"
             handle=".cursor-move"
             item-key="pri"
@@ -331,7 +332,7 @@ onMounted(() => {
                 @close="removeDirectory(element)"
               />
             </template>
-          </draggable>
+          </Draggable>
         </VCardText>
         <VCardText>
           <VForm @submit.prevent="() => {}">
diff --git a/src/views/setting/AccountSettingNotification.vue b/src/views/setting/AccountSettingNotification.vue
index bf201903..92cd3b4f 100644
--- a/src/views/setting/AccountSettingNotification.vue
+++ b/src/views/setting/AccountSettingNotification.vue
@@ -1,10 +1,8 @@
 <script lang="ts" setup>
 import { useToast } from 'vue-toastification'
 import api from '@/api'
-import draggable from 'vuedraggable'
 import type { NotificationConf, NotificationSwitchConf } from '@/api/types'
 import NotificationChannelCard from '@/components/cards/NotificationChannelCard.vue'
-import ProgressDialog from '@/components/dialog/ProgressDialog.vue'
 import { useI18n } from 'vue-i18n'
 import { notificationSwitchDict } from '@/api/constants'
 import { useTheme, useDisplay } from 'vuetify'
@@ -15,6 +13,10 @@ const display = useDisplay()
 // 国际化
 const { t } = useI18n()
 
+// 通知渠道排序和进度弹窗按需加载，避免通知设置 chunk 直接包含拖拽库。
+const Draggable = defineAsyncComponent(() => import('vuedraggable').then(module => module.default))
+const ProgressDialog = defineAsyncComponent(() => import('@/components/dialog/ProgressDialog.vue'))
+
 // 初始化模板配置字典
 const templateConfigs = ref<Record<string, string>>({
   organizeSuccess: '{}',
@@ -324,7 +326,7 @@ onMounted(() => {
           <VCardSubtitle>{{ t('setting.notification.channelsDesc') }}</VCardSubtitle>
         </VCardItem>
         <VCardText>
-          <draggable
+          <Draggable
             v-model="notifications"
             handle=".cursor-move"
             item-key="name"
@@ -339,7 +341,7 @@ onMounted(() => {
                 @close="removeNotification(element)"
               />
             </template>
-          </draggable>
+          </Draggable>
         </VCardText>
         <VCardText>
           <VForm @submit.prevent="() => {}">
diff --git a/src/views/setting/AccountSettingRule.vue b/src/views/setting/AccountSettingRule.vue
index d1d20fcb..a906dba0 100644
--- a/src/views/setting/AccountSettingRule.vue
+++ b/src/views/setting/AccountSettingRule.vue
@@ -2,17 +2,19 @@
 <script lang="ts" setup>
 import { useToast } from 'vue-toastification'
 import { copyToClipboard } from '@/@core/utils/navigator'
-import draggable from 'vuedraggable'
 import api from '@/api'
 import { CustomRule, FilterRuleGroup } from '@/api/types'
 import CustomerRuleCard from '@/components/cards/CustomRuleCard.vue'
 import FilterRuleGroupCard from '@/components/cards/FilterRuleGroupCard.vue'
-import ImportCodeDialog from '@/components/dialog/ImportCodeDialog.vue'
 import { useI18n } from 'vue-i18n'
 
 // 国际化
 const { t } = useI18n()
 
+// 拖拽库和导入弹窗只在规则编辑交互中需要，拆出设置页入口 chunk。
+const Draggable = defineAsyncComponent(() => import('vuedraggable').then(module => module.default))
+const ImportCodeDialog = defineAsyncComponent(() => import('@/components/dialog/ImportCodeDialog.vue'))
+
 // 自定义规则列表
 const customRules = ref<CustomRule[]>([])
 
@@ -381,7 +383,7 @@ onMounted(() => {
           <VCardSubtitle>{{ t('setting.rule.customRulesDesc') }}</VCardSubtitle>
         </VCardItem>
         <VCardText>
-          <draggable
+          <Draggable
             v-model="customRules"
             handle=".cursor-move"
             item-key="name"
@@ -396,7 +398,7 @@ onMounted(() => {
                 @change="onRuleChange"
               />
             </template>
-          </draggable>
+          </Draggable>
         </VCardText>
         <VCardText>
           <VForm @submit.prevent="() => {}">
@@ -432,7 +434,7 @@ onMounted(() => {
           <VCardSubtitle>{{ t('setting.rule.priorityRuleGroupsDesc') }}</VCardSubtitle>
         </VCardItem>
         <VCardText>
-          <draggable
+          <Draggable
             v-model="filterRuleGroups"
             handle=".cursor-move"
             item-key="name"
@@ -449,7 +451,7 @@ onMounted(() => {
                 @change="changeRuleGroup"
               />
             </template>
-          </draggable>
+          </Draggable>
         </VCardText>
         <VCardText>
           <VForm @submit.prevent="() => {}">
diff --git a/src/views/setting/AccountSettingSystem.vue b/src/views/setting/AccountSettingSystem.vue
index 7f067a33..ddc054a0 100644
--- a/src/views/setting/AccountSettingSystem.vue
+++ b/src/views/setting/AccountSettingSystem.vue
@@ -1,14 +1,11 @@
 <!-- eslint-disable sonarjs/no-duplicate-string -->
 <script lang="ts" setup>
 import { useToast } from 'vue-toastification'
-import { VRow } from 'vuetify/lib/components/index.mjs'
-import draggable from 'vuedraggable'
 import api from '@/api'
 import { DownloaderConf, MediaServerConf } from '@/api/types'
 import DownloaderCard from '@/components/cards/DownloaderCard.vue'
 import MediaServerCard from '@/components/cards/MediaServerCard.vue'
 import { copyToClipboard } from '@/@core/utils/navigator'
-import ProgressDialog from '@/components/dialog/ProgressDialog.vue'
 import { useI18n } from 'vue-i18n'
 import { downloaderOptions, mediaServerOptions } from '@/api/constants'
 import { useDisplay, useTheme } from 'vuetify'
@@ -22,6 +19,10 @@ const isTransparentTheme = computed(() => theme.name.value === 'transparent')
 // 国际化
 const { t } = useI18n()
 
+// 下载器/媒体服务器排序和进度弹窗按需加载，降低系统设置页入口解析量。
+const Draggable = defineAsyncComponent(() => import('vuedraggable').then(module => module.default))
+const ProgressDialog = defineAsyncComponent(() => import('@/components/dialog/ProgressDialog.vue'))
+
 // 系统设置项
 const SystemSettings = ref<any>({
   // 基础设置
@@ -1405,7 +1406,7 @@ watch(currentLlmSnapshotKey, (snapshotKey, previousSnapshotKey) => {
           <VCardSubtitle>{{ t('setting.system.downloadersDesc') }}</VCardSubtitle>
         </VCardItem>
         <VCardText>
-          <draggable
+          <Draggable
             v-model="downloaders"
             handle=".cursor-move"
             item-key="name"
@@ -1421,7 +1422,7 @@ watch(currentLlmSnapshotKey, (snapshotKey, previousSnapshotKey) => {
                 :allow-refresh="isRequest"
               />
             </template>
-          </draggable>
+          </Draggable>
         </VCardText>
         <VCardText>
           <VForm @submit.prevent="() => {}">
@@ -1456,7 +1457,7 @@ watch(currentLlmSnapshotKey, (snapshotKey, previousSnapshotKey) => {
           <VCardSubtitle>{{ t('setting.system.mediaServersDesc') }}</VCardSubtitle>
         </VCardItem>
         <VCardText>
-          <draggable
+          <Draggable
             v-model="mediaServers"
             handle=".cursor-move"
             item-key="name"
@@ -1471,7 +1472,7 @@ watch(currentLlmSnapshotKey, (snapshotKey, previousSnapshotKey) => {
                 @change="onMediaServerChange"
               />
             </template>
-          </draggable>
+          </Draggable>
         </VCardText>
         <VCardText>
           <VForm @submit.prevent="() => {}">
diff --git a/src/views/site/SiteCardListView.vue b/src/views/site/SiteCardListView.vue
index 5d3114da..5bf83cc7 100644
--- a/src/views/site/SiteCardListView.vue
+++ b/src/views/site/SiteCardListView.vue
@@ -1,12 +1,8 @@
 <script lang="ts" setup>
-import draggable from 'vuedraggable'
 import api from '@/api'
 import type { Site, SiteUserData } from '@/api/types'
 import SiteCard from '@/components/cards/SiteCard.vue'
 import NoDataFound from '@/components/NoDataFound.vue'
-import SiteAddEditDialog from '@/components/dialog/SiteAddEditDialog.vue'
-import SiteStatisticsDialog from '@/components/dialog/SiteStatisticsDialog.vue'
-import SiteImportDialog from '@/components/dialog/SiteImportDialog.vue'
 import ProgressiveCardGrid from '@/components/misc/ProgressiveCardGrid.vue'
 import { useDynamicButton } from '@/composables/useDynamicButton'
 import { useI18n } from 'vue-i18n'
@@ -25,6 +21,12 @@ const route = useRoute()
 // APP 模式检测
 const { appMode } = usePWA()
 
+// 拖拽排序和站点弹窗都不是站点列表首屏必需，打开对应功能时再加载。
+const Draggable = defineAsyncComponent(() => import('vuedraggable').then(module => module.default))
+const SiteAddEditDialog = defineAsyncComponent(() => import('@/components/dialog/SiteAddEditDialog.vue'))
+const SiteStatisticsDialog = defineAsyncComponent(() => import('@/components/dialog/SiteStatisticsDialog.vue'))
+const SiteImportDialog = defineAsyncComponent(() => import('@/components/dialog/SiteImportDialog.vue'))
+
 // 站点列表
 const siteList = ref<Site[]>([])
 
@@ -402,7 +404,7 @@ useDynamicButton({
     </VAlert>
 
     <LoadingBanner v-if="!isRefreshed" class="mt-12" />
-    <draggable
+    <Draggable
       v-if="draggableSiteList.length > 0 && canDragSort"
       v-model="draggableSiteList"
       @end="savaSitesPriority"
@@ -421,7 +423,7 @@ useDynamicButton({
           @refresh-stats="handleRefreshStats"
         />
       </template>
-    </draggable>
+    </Draggable>
     <ProgressiveCardGrid
       v-else-if="draggableSiteList.length > 0 && shouldVirtualizeList"
       :items="draggableSiteList"