diff --git a/example/qml/page/T_Theme.qml b/example/qml/page/T_Theme.qml
index fbd255e6..c1e5f280 100644
--- a/example/qml/page/T_Theme.qml
+++ b/example/qml/page/T_Theme.qml
@@ -13,7 +13,7 @@ FluScrollablePage{
 
     FluFrame{
         Layout.fillWidth: true
-        Layout.preferredHeight: 420
+        Layout.preferredHeight: 408
         padding: 10
 
         ColumnLayout{
diff --git a/src/FluTheme.cpp b/src/FluTheme.cpp
index d28b7e90..84e13c57 100644
--- a/src/FluTheme.cpp
+++ b/src/FluTheme.cpp
@@ -25,7 +25,7 @@ FluTheme::FluTheme(QObject *parent) : QObject{parent} {
     _blurBehindWindowEnabled = false;
     QGuiApplication::instance()->installEventFilter(this);
     refreshColors();
-    updateDesktopImage();
+    checkUpdateDesktopImage();
     connect(this, &FluTheme::darkModeChanged, this, [=] {
         Q_EMIT darkChanged();
     });
@@ -49,7 +49,7 @@ void FluTheme::refreshColors() {
     fontTertiaryColor(isDark ? QColor(200, 200, 200, 255) : QColor(153, 153, 153, 255));
     itemNormalColor(isDark ? QColor(255, 255, 255, 0) : QColor(0, 0, 0, 0));
     frameColor(isDark ? QColor(255, 255, 255, qRound(255 * 0.12)) : QColor(0, 0, 0, qRound(255 * 0.09)));
-    frameActiveColor(isDark ? QColor(32, 32, 32, qRound(255 * 0.8)) : QColor(255, 255, 255, qRound(255 * 0.6)));
+    frameActiveColor(isDark ? QColor(48, 48, 48, qRound(255 * 0.8)) : QColor(255, 255, 255, qRound(255 * 0.6)));
     itemHoverColor(isDark ? QColor(255, 255, 255, qRound(255 * 0.06)) : QColor(0, 0, 0, qRound(255 * 0.03)));
     itemPressColor(isDark ? QColor(255, 255, 255, qRound(255 * 0.09)) : QColor(0, 0, 0, qRound(255 * 0.06)));
     itemCheckColor(isDark ? QColor(255, 255, 255, qRound(255 * 0.12)) : QColor(0, 0, 0, qRound(255 * 0.09)));
@@ -91,7 +91,7 @@ bool FluTheme::dark() const {
     }
 }
 
-void FluTheme::updateDesktopImage(){
+void FluTheme::checkUpdateDesktopImage(){
     QThreadPool::globalInstance()->start([=]() {
         _mutex.lock();
         auto path = FluTools::getInstance()->getWallpaperFilePath();
@@ -108,5 +108,7 @@ void FluTheme::updateDesktopImage(){
 
 void FluTheme::timerEvent(QTimerEvent *event)
 {
-    updateDesktopImage();
+    if(_blurBehindWindowEnabled){
+        checkUpdateDesktopImage();
+    }
 }
diff --git a/src/FluTheme.h b/src/FluTheme.h
index a0f98814..2c6fb1a5 100644
--- a/src/FluTheme.h
+++ b/src/FluTheme.h
@@ -55,7 +55,7 @@ protected:
 
     void timerEvent(QTimerEvent *event) override;
 
-    void updateDesktopImage();
+    void checkUpdateDesktopImage();
 
 public:
 SINGLETON(FluTheme)
diff --git a/src/Qt5/imports/FluentUI/Controls/FluWindow.qml b/src/Qt5/imports/FluentUI/Controls/FluWindow.qml
index 3be637de..a56fec54 100644
--- a/src/Qt5/imports/FluentUI/Controls/FluWindow.qml
+++ b/src/Qt5/imports/FluentUI/Controls/FluWindow.qml
@@ -118,6 +118,8 @@ Window {
                 id:img_back
                 visible: false
                 cache: false
+                fillMode: Image.PreserveAspectCrop
+                asynchronous: true
                 Component.onCompleted: {
                     var geometry = FluTools.desktopAvailableGeometry(window)
                     width = geometry.width
diff --git a/src/Qt6/imports/FluentUI/Controls/FluWindow.qml b/src/Qt6/imports/FluentUI/Controls/FluWindow.qml
index 4474285a..a9b6cc2a 100644
--- a/src/Qt6/imports/FluentUI/Controls/FluWindow.qml
+++ b/src/Qt6/imports/FluentUI/Controls/FluWindow.qml
@@ -117,6 +117,8 @@ Window {
                 id:img_back
                 visible: false
                 cache: false
+                fillMode: Image.PreserveAspectCrop
+                asynchronous: true
                 Component.onCompleted: {
                     var geometry = FluTools.desktopAvailableGeometry(window)
                     width = geometry.width