diff --git a/Wpf_AiSportsMicrospace/Common/SportOperate.cs b/Wpf_AiSportsMicrospace/Common/SportOperate.cs
index 9aa7ed1..62092fa 100644
--- a/Wpf_AiSportsMicrospace/Common/SportOperate.cs
+++ b/Wpf_AiSportsMicrospace/Common/SportOperate.cs
@@ -34,7 +34,7 @@ namespace Wpf_AiSportsMicrospace.Common
         private readonly CalcBaseRule _raiseLeftHandRule;
         private int _leftWaveCount = 0;
         private int _rightWaveCount = 0;
-        private const int WaveThreshold = 4;
+        private const int WaveThreshold = 2;
         WebcamClient _webcamClient;
 
         private DateTime? _wristStartTime = null;
diff --git a/Wpf_AiSportsMicrospace/MyUserControl/CoverFlowControl.xaml.cs b/Wpf_AiSportsMicrospace/MyUserControl/CoverFlowControl.xaml.cs
index 6cb5175..a75c697 100644
--- a/Wpf_AiSportsMicrospace/MyUserControl/CoverFlowControl.xaml.cs
+++ b/Wpf_AiSportsMicrospace/MyUserControl/CoverFlowControl.xaml.cs
@@ -23,7 +23,7 @@ namespace Wpf_AiSportsMicrospace.MyUserControl
         private const double CardWidth = 368;
         private const double CardHeight = 534;
         private const double CardGap = 30;          // 卡片之间水平间距
-        private const double SlideDurationMs = 380; // 动画时长
+        private const double SlideDurationMs = 300; // 动画时长
         private const double ProgressDurationMs = 2600;
 
         public int SelectedIndex
diff --git a/Wpf_AiSportsMicrospace/Views/Home.xaml.cs b/Wpf_AiSportsMicrospace/Views/Home.xaml.cs
index 48aabad..de37535 100644
--- a/Wpf_AiSportsMicrospace/Views/Home.xaml.cs
+++ b/Wpf_AiSportsMicrospace/Views/Home.xaml.cs
@@ -34,7 +34,7 @@ namespace Wpf_AiSportsMicrospace
         private WavingAction _lastGestureAction = WavingAction.None;
         private DateTime _lastMenuSlideTime = DateTime.MinValue;
         private bool _isNavigating;
-        private const int MenuSlideCooldownMs = 520;
+        private const int MenuSlideCooldownMs = 320;
 
         public Home()
         {
diff --git a/Wpf_AiSportsMicrospace/Views/JumpRope/MusicJumpRope.xaml.cs b/Wpf_AiSportsMicrospace/Views/JumpRope/MusicJumpRope.xaml.cs
index 8349a05..086951b 100644
--- a/Wpf_AiSportsMicrospace/Views/JumpRope/MusicJumpRope.xaml.cs
+++ b/Wpf_AiSportsMicrospace/Views/JumpRope/MusicJumpRope.xaml.cs
@@ -60,8 +60,6 @@ namespace Wpf_AiSportsMicrospace.Views.JumpRope
         public MusicJumpRope()
         {
             InitializeComponent();
-            Loaded += UserControl_Loaded;
-            Unloaded += UserControl_Unloaded;
             _musicJumpRopeContext = new MusicJumpRopeContext();
         }
 
@@ -227,7 +225,12 @@ namespace Wpf_AiSportsMicrospace.Views.JumpRope
         private DateTime _lastUpdateTime = DateTime.Now;
         private async void StartCountdown(int start = 4)
         {
-            tipImage.Visibility = Visibility.Hidden;
+            if (_isCountdownStarted)
+                return;
+
+            if (tipImage != null)
+                tipImage.Visibility = Visibility.Hidden;
+
             _mainWin.ShowCountDownAnimation();
             _isCountdownStarted = true;
             _currentCountdown = start;