Optimize formatutil more

source/funkin/backend/system/Main.hx

@@ -1,5 +1,6 @@
 package funkin.backend.system;
 
+import funkin.backend.utils.translations.FormatUtil;
 import flixel.addons.transition.FlxTransitionSprite.GraphicTransTileDiamond;
 import flixel.addons.transition.FlxTransitionableState;
 import flixel.addons.transition.TransitionData;
@@ -58,6 +59,12 @@ class Main extends Sprite
 	public static var gameThreads:Array<Thread> = [];
 	#end
 
+	public static function preInit() {
+		funkin.backend.utils.NativeAPI.registerAsDPICompatible();
+		funkin.backend.system.CommandLineHandler.parseCommandLine(Sys.args());
+		funkin.backend.system.Main.fixWorkingDirectory();
+	}
+
 	public function new()
 	{
 		super();

source/funkin/backend/utils/translations/FormatUtil.hx

@@ -5,7 +5,7 @@ package funkin.backend.utils.translations;
  *
  * For example if the parameter list is just an `Int` which is `9`, `You have been blue balled {0} times` becomes `You have been blue balled 9 times`.
  */
-class FormatUtil {
+final class FormatUtil {
 	private static var cache:Map<String, IFormatInfo> = new Map();
 	private static var cacheStr:Map<String, IFormatInfo> = new Map();
 
@@ -87,14 +87,17 @@ class ParamFormatInfo implements IFormatInfo {
 	public function format(params:Array<Dynamic>):String {
 		if (params == null) params = [];
 
-		var str:String = "";
-		for (i=>s in strings) {
-			str += s;
-			if (i < indexes.length)
-				str += params[indexes[i]];
-		}
+		var lenStr = strings.length;
+		var lenInd = indexes.length;
 
-		return str;
+		var arr = new haxe.ds.Vector<String>(lenStr + ((lenStr < lenInd) ? lenStr : lenInd));
+		var i = 0;
+		for (idx=>s in strings) {
+			arr[i++] = s;
+			if (idx < lenInd)
+				arr[i++] = Std.string(params[indexes[idx]]);
+		}
+		return arr.join("");
 	}
 
 	public function toString():String {

source/lime/system/System.hx

@@ -602,9 +602,7 @@ class System
 	{
 		// executes first!!
 		#if (sys && !macro)
-		funkin.backend.utils.NativeAPI.registerAsDPICompatible();
-		funkin.backend.system.CommandLineHandler.parseCommandLine(Sys.args());
-		funkin.backend.system.Main.fixWorkingDirectory();
+		funkin.backend.system.Main.preInit();
 		#end
 
 		if (__applicationEntryPoint == null)