Well, I find myself always desync in the game especially when we're about to win, so I Googled and found this on the internet. It's not a straight forward procedure but rather a guidelines on TCP configurations that would improve the efficiency of our internet connection. Please read and tell us whether it works for you or not.
http://www.speedguide.net/read_articles.php?id=2574
http://www.speedguide.net/read_articles.php?id=2574