Optimize Label.CharacterSpacing on initial load (#31391)

Author: MartyIX

src/Core/src/Handlers/Label/LabelHandler.Windows.cs

@@ -53,8 +53,15 @@ public static void MapText(ILabelHandler handler, ILabel label) =>
 		public static void MapTextColor(ILabelHandler handler, ILabel label) =>
 			handler.PlatformView?.UpdateTextColor(label);
 
-		public static void MapCharacterSpacing(ILabelHandler handler, ILabel label) =>
+		public static void MapCharacterSpacing(ILabelHandler handler, ILabel label)
+		{
+			if (handler.IsConnectingHandler() && label.CharacterSpacing == 0)
+			{
+				return;
+			}
+
 			handler.PlatformView?.UpdateCharacterSpacing(label);
+		}
 
 		public static void MapFont(ILabelHandler handler, ILabel label)
 		{