I've kinda got a strange problem. When I first start playing, the game is running fine, with a solid fps. However, after about 5 minutes, the fps goes down by about 20 or 30. Then, after about 10 or 15 more minutes, it returns to a solid fps and remains that way for the rest of the time. It's not terribly bothersome, but it can get a little frustrating. Anyone else have this problem?
