Weird Lag

[Winona]

So after the October 14th werewolf game ( the one hosted by GT-Hiro ) RO starts lagging jerkily. Before it didn't do anything like that, but during the game I disconnected a few times and then afterward I logged back in and I couldn't move so I had to alt-f4, and this happened about 2 times or so. Do I need to update RO or something? I haven't since I downloaded it -which is probably stupid- because I don't know where to x.x Help!