Only recreate sliders when the sensitivity tab is selected, rather than on every tab change.

smx-config/MainWindow.xaml

@@ -919,7 +919,7 @@ Use if the platform is too sensitive.</clr:String>
                 </Grid>
             </TabItem>
 
-            <TabItem Header="Sensitivity">
+            <TabItem x:Name="SensitivityTab" Header="Sensitivity">
                 <Grid Background="#FFE5E5E5" RenderTransformOrigin="0.5,0.5">
                     <DockPanel Margin="0,0,0,0" VerticalAlignment="Stretch">
                         <TextBlock DockPanel.Dock="Top" HorizontalAlignment="Center" Margin="0,15,0,10" VerticalAlignment="Top"

smx-config/MainWindow.xaml.cs

@@ -641,6 +641,8 @@ namespace smx_config
         }
 
         private void MainTab_Selected(object sender, RoutedEventArgs e)
+        {
+            if(Main.SelectedItem == SensitivityTab)
             {
                 // Refresh the threshold sliders, in case the enabled panels were changed
                 // on the advanced tab.
@@ -648,3 +650,4 @@ namespace smx_config
             }
         }
     }
+}