diff --git a/packages/core/src/platform/builtInMixins/styleHelperMixin.ios.js b/packages/core/src/platform/builtInMixins/styleHelperMixin.ios.js
index 8113fb97cb..fea47aa337 100644
--- a/packages/core/src/platform/builtInMixins/styleHelperMixin.ios.js
+++ b/packages/core/src/platform/builtInMixins/styleHelperMixin.ios.js
@@ -12,8 +12,22 @@ global.__mpxPageSizeCountMap = reactive({})
 
 global.__GCC = function (className, classMap, classMapValueCache) {
   if (!classMapValueCache.has(className)) {
-    const styleObj = classMap[className]?.(global.__formatValue)
-    styleObj && classMapValueCache.set(className, styleObj)
+    const originalDependentScreenSize = dependentScreenSize
+    dependentScreenSize = false
+
+    let styleObj = classMap[className]?.(formatValue)
+    if (!styleObj) return
+    if (!styleObj._media?.length) {
+      styleObj = {
+        _default: styleObj
+      }
+    }
+
+    // 记录是否依赖屏幕尺寸，在屏幕尺寸变化时决定是否重新渲染对应组件
+    styleObj._dependentScreenSize = dependentScreenSize
+    dependentScreenSize = dependentScreenSize || originalDependentScreenSize
+
+    classMapValueCache.set(className, styleObj)
   }
   return classMapValueCache.get(className)
 }
@@ -79,12 +93,15 @@ const unit = {
 
 const empty = {}
 
+// 记录style是否依赖屏幕尺寸
+let dependentScreenSize = false
 function formatValue (value, unitType) {
   if (!dimensionsInfoInitialized) useDimensionsInfo(global.__mpxAppDimensionsInfo)
   if (unitType === 'hairlineWidth') {
     return StyleSheet.hairlineWidth
   }
   if (unitType && typeof unit[unitType] === 'function') {
+    dependentScreenSize = true
     return unit[unitType](+value)
   }
   const matched = unitRegExp.exec(value)
@@ -254,11 +271,11 @@ export default function styleHelperMixin () {
         return concat(staticClass, stringifyDynamicClass(dynamicClass))
       },
       __getStyle (staticClass, dynamicClass, staticStyle, dynamicStyle, hide) {
+        // 重置依赖标记
+        dependentScreenSize = false
         const isNativeStaticStyle = staticStyle && isNativeStyle(staticStyle)
         let result = isNativeStaticStyle ? [] : {}
         const mergeResult = isNativeStaticStyle ? (...args) => result.push(...args) : (...args) => Object.assign(result, ...args)
-        // 使用一下 __getSizeCount 触发其 get
-        this.__getSizeCount()
 
         if (staticClass || dynamicClass) {
           // todo 当前为了复用小程序unocss产物，暂时进行mpEscape，等后续正式支持unocss后可不进行mpEscape
@@ -267,20 +284,15 @@ export default function styleHelperMixin () {
           classString.split(/\s+/).forEach((className) => {
             let localStyle, appStyle
             if (localStyle = this.__getClassStyle?.(className)) {
-              if (localStyle._media?.length) {
-                mergeResult(localStyle._default, getMediaStyle(localStyle._media))
-              } else {
-                mergeResult(localStyle)
-              }
+              mergeResult(localStyle._default, getMediaStyle(localStyle._media))
+              // class style 计算可能触发缓存，需要单独在结果中记录是否依赖屏幕尺寸，不能直接使用全局变量。
+              this.__dependentScreenSize = this.__dependentScreenSize || localStyle._dependentScreenSize
             } else if (appStyle = global.__getAppClassStyle?.(className)) {
-              if (appStyle._media?.length) {
-                mergeResult(appStyle._default, getMediaStyle(appStyle._media))
-              } else {
-                mergeResult(appStyle)
-              }
-            } else if (isObject(this.__props[className])) {
+              mergeResult(appStyle._default, getMediaStyle(appStyle._media))
+              this.__dependentScreenSize = this.__dependentScreenSize || appStyle._dependentScreenSize
+            } else if (isObject(this.__mpxProxy.props[className])) {
               // externalClasses必定以对象形式传递下来
-              mergeResult(this.__props[className])
+              mergeResult(this.__mpxProxy.props[className])
             }
           })
         }
@@ -319,6 +331,12 @@ export default function styleHelperMixin () {
           })
         }
         const isEmpty = isNativeStaticStyle ? !result.length : isEmptyObject(result)
+
+        // 仅在依赖屏幕尺寸时才触发__getSizeCount进行相应式关联，避免屏幕尺寸变化时不必要的性能损耗
+        this.__dependentScreenSize = this.__dependentScreenSize || dependentScreenSize
+        if (this.__dependentScreenSize) {
+          this.__getSizeCount()
+        }
         return isEmpty ? empty : result
       }
     }
diff --git a/packages/core/src/platform/patch/getDefaultOptions.ios.js b/packages/core/src/platform/patch/getDefaultOptions.ios.js
index 62770ce107..b1a2240cfe 100644
--- a/packages/core/src/platform/patch/getDefaultOptions.ios.js
+++ b/packages/core/src/platform/patch/getDefaultOptions.ios.js
@@ -398,7 +398,7 @@ const triggerResizeEvent = (mpxProxy, sizeRef) => {
   }
 }
 
-function usePageEffect (mpxProxy, pageId) {
+function usePageEffect (mpxProxy, pageId, type) {
   const sizeRef = useRef(getSystemInfo())
 
   useEffect(() => {
@@ -415,7 +415,7 @@ function usePageEffect (mpxProxy, pageId) {
             triggerResizeEvent(mpxProxy, sizeRef)
 
             // 如果当前全局size与pagesize不一致，在show之后触发一次resize事件
-            if (newVal === 'show' && global.__mpxPageSizeCountMap[pageId] !== global.__mpxSizeCount) {
+            if (type === 'page' && newVal === 'show' && global.__mpxPageSizeCountMap[pageId] !== global.__mpxSizeCount) {
               // 刷新__mpxPageSizeCountMap, 每个页面仅会执行一次，直接驱动render刷新
               global.__mpxPageSizeCountMap[pageId] = global.__mpxSizeCount
             }
@@ -427,7 +427,9 @@ function usePageEffect (mpxProxy, pageId) {
     }
     return () => {
       unWatch && unWatch()
-      del(global.__mpxPageSizeCountMap, pageId)
+      if (type === 'page') {
+        del(global.__mpxPageSizeCountMap, pageId)
+      }
     }
   }, [])
 }
@@ -637,6 +639,11 @@ export function getDefaultOptions ({ type, rawOptions = {}, currentInject }) {
     })
   }
   const validProps = Object.assign({}, rawOptions.props, rawOptions.properties)
+  if (global.__externalClasses && global.__externalClasses.length > 0) {
+    global.__externalClasses.forEach((name) => {
+      validProps[name] = null
+    })
+  }
   const { hasDescendantRelation, hasAncestorRelation } = checkRelation(rawOptions)
   if (rawOptions.methods) rawOptions.methods = wrapMethodsWithErrorHandling(rawOptions.methods)
   const defaultOptions = memo(forwardRef((props, ref) => {
@@ -697,7 +704,7 @@ export function getDefaultOptions ({ type, rawOptions = {}, currentInject }) {
       }
     })
 
-    usePageEffect(proxy, pageId)
+    usePageEffect(proxy, pageId, type)
     useEffect(() => {
       proxy.mounted()
       return () => {
diff --git a/packages/webpack-plugin/lib/loader.js b/packages/webpack-plugin/lib/loader.js
index cfb6f030a5..89c7960e20 100644
--- a/packages/webpack-plugin/lib/loader.js
+++ b/packages/webpack-plugin/lib/loader.js
@@ -38,7 +38,7 @@ module.exports = function (content) {
     return content
   }
   const { resourcePath, queryObj } = parseRequest(this.resource)
-
+  const externalClasses = mpx.externalClasses || []
   const packageRoot = queryObj.packageRoot || mpx.currentPackageRoot
   const packageName = packageRoot || 'main'
   const independent = queryObj.independent
@@ -178,6 +178,7 @@ module.exports = function (content) {
           originalUsingComponents,
           componentGenerics,
           autoScope,
+          externalClasses,
           callback
         })
       }
diff --git a/packages/webpack-plugin/lib/react/index.js b/packages/webpack-plugin/lib/react/index.js
index 4673d270f0..9969a34dd4 100644
--- a/packages/webpack-plugin/lib/react/index.js
+++ b/packages/webpack-plugin/lib/react/index.js
@@ -24,6 +24,7 @@ module.exports = function ({
   originalUsingComponents,
   componentGenerics,
   autoScope,
+  externalClasses,
   callback
 }) {
   if (ctorType === 'app' && !queryObj.isApp) {
@@ -95,7 +96,8 @@ module.exports = function ({
         wxsModuleMap: templateRes.wxsModuleMap,
         localComponentsMap: jsonRes.localComponentsMap,
         localPagesMap: jsonRes.localPagesMap,
-        rnConfig
+        rnConfig,
+        externalClasses
       }, callback)
     }
   ], (err, scriptRes) => {
diff --git a/packages/webpack-plugin/lib/react/processScript.js b/packages/webpack-plugin/lib/react/processScript.js
index 9b88cb9b3a..d0d640b6fc 100644
--- a/packages/webpack-plugin/lib/react/processScript.js
+++ b/packages/webpack-plugin/lib/react/processScript.js
@@ -15,7 +15,8 @@ module.exports = function (script, {
   localPagesMap,
   rnConfig,
   componentGenerics,
-  genericsInfo
+  genericsInfo,
+  externalClasses
 }, callback) {
   const { appInfo, i18n } = loaderContext.getMpx()
 
@@ -49,7 +50,7 @@ import { getComponent, getAsyncSuspense } from ${stringifyRequest(loaderContext,
       jsonConfig,
       rnConfig
     })
-    output += buildGlobalParams({ moduleId, scriptSrcMode, loaderContext, isProduction, ctorType, jsonConfig, componentsMap, pagesMap, firstPage, hasApp })
+    output += buildGlobalParams({ moduleId, scriptSrcMode, loaderContext, isProduction, ctorType, jsonConfig, componentsMap, pagesMap, firstPage, hasApp, externalClasses })
     output += getRequireScript({ ctorType, script, loaderContext })
     output += `export default global.__mpxOptionsMap[${JSON.stringify(moduleId)}]\n`
   } else {
diff --git a/packages/webpack-plugin/lib/react/script-helper.js b/packages/webpack-plugin/lib/react/script-helper.js
index a86e3ad72d..8347251dd2 100644
--- a/packages/webpack-plugin/lib/react/script-helper.js
+++ b/packages/webpack-plugin/lib/react/script-helper.js
@@ -150,7 +150,8 @@ function buildGlobalParams ({
   firstPage,
   outputPath,
   genericsInfo,
-  hasApp
+  hasApp,
+  externalClasses
 }) {
   let content = ''
   if (ctorType === 'app') {
@@ -165,6 +166,7 @@ global.__style = ${JSON.stringify(jsonConfig.style || 'v1')}
 global.__mpxPageConfig = ${JSON.stringify(jsonConfig.window)}
 global.__appComponentsMap = ${shallowStringify(componentsMap)}
 global.__preloadRule = ${JSON.stringify(jsonConfig.preloadRule)}
+global.__externalClasses = ${JSON.stringify(externalClasses || [])}
 global.currentInject.pagesMap = ${shallowStringify(pagesMap)}
 global.currentInject.firstPage = ${JSON.stringify(firstPage)}\n`
   } else {