diff --git a/LaserGRBL/AssemblyInfo.cs b/LaserGRBL/AssemblyInfo.cs
index 247351a9..3eaae348 100644
--- a/LaserGRBL/AssemblyInfo.cs
+++ b/LaserGRBL/AssemblyInfo.cs
@@ -31,5 +31,5 @@
 // È possibile specificare tutti i valori oppure impostare valori predefiniti per i numeri relativi alla revisione e alla build 
 // utilizzando l'asterisco (*) come descritto di seguito:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion ("7.6.2")]
+[assembly: AssemblyVersion ("7.7.0")]
 [assembly: NeutralResourcesLanguage("en")]
diff --git a/LaserGRBL/UserControls/GrblPanel3D.cs b/LaserGRBL/UserControls/GrblPanel3D.cs
index d2cb8d0a..c21d5e18 100644
--- a/LaserGRBL/UserControls/GrblPanel3D.cs
+++ b/LaserGRBL/UserControls/GrblPanel3D.cs
@@ -114,9 +114,9 @@ public GrblPanel3D()
 		{
 			InitializeComponent();
 			OpCounter = 0;
-			FrameTime = new Base.Mathematics.MobileDAverageCalculator(30);
-			SleepTime = new Base.Mathematics.MobileDAverageCalculator(30);
-			RefreshRate = new Base.Mathematics.MobileDAverageCalculator(30);
+			FrameTime = new Base.Mathematics.MobileDAverageCalculator(10);
+			SleepTime = new Base.Mathematics.MobileDAverageCalculator(10);
+			RefreshRate = new Base.Mathematics.MobileDAverageCalculator(10);
 			mLastWPos = GPoint.Zero;
 			mLastMPos = GPoint.Zero;
 			forcez = Settings.GetObject("Enale Z Jog Control", false);
@@ -325,10 +325,10 @@ private void DrawScene()
 				mBmp.Bitmap = newBmp;
 
 				FrameTime.EnqueueNewSample(crono.ElapsedTime.TotalMilliseconds);
-				
-				int best_sleep = BestSleep(FrameTime.CurrentValue, 10, 100, 10, 50);
-				SleepTime.EnqueueNewSample(best_sleep);
-				Thread.Sleep(best_sleep);
+
+				crono.Start();
+				Thread.Sleep(BestSleep(FrameTime.CurrentValue, 10, 100, 15, 50));
+				SleepTime.EnqueueNewSample(crono.ElapsedTime.TotalMilliseconds);
 
 				// call control invalidate
 				Invalidate();
diff --git a/setup.iss b/setup.iss
index 6a838785..ed0d872f 100644
--- a/setup.iss
+++ b/setup.iss
@@ -2,7 +2,7 @@
 ; SEE THE DOCUMENTATION FOR DETAILS ON CREATING INNO SETUP SCRIPT FILES!
 
 #define MyAppName "LaserGRBL"
-#define MyAppVersion "7.6.1"
+#define MyAppVersion "7.7.0"
 #define MyAppVersionName "Rhydon"
 #define MyAppPublisher "LaserGRBL"
 #define MyAppURL "https://lasergrbl.com"