add quit flag

comparing strings is slow and so is text rendering! (but mostly text rendering)

src/game/controls/MPFFRScoreCompare.as

@@ -119,6 +119,7 @@ internal class PlayerLabel extends Sprite
 
     private var _lastPosition:int = -1;
     private var _lastScore:int = -1;
+    private var _hasQuit:Boolean = false;
 
     public function PlayerLabel(room:MPRoomFFR, data:MPMatchFFRUser):void
     {
@@ -165,12 +166,13 @@ internal class PlayerLabel extends Sprite
             this.alpha = data.alive ? 1 : 0.5;
             isAlive = data.alive;
         }
-        else {
+        else if (!_hasQuit) {
             // check if user has quit the match (but is still connected)
             const gameState:String = data.room.player_state_map[data.user.uid].game_state;
 
             if (gameState != "game" && gameState != "loading") {
                 txtUsername.fontColor = MPColors.USER_LEAVE;
+                _hasQuit = true;
             }
         }
     }