So I recently tried to play on a lan server by my self, and whenever I do, no matter what map I try, my game is stuttering and slow. Its not even like I'm having fps issues, my game runs fine, and my reload speed is the same. My acceleration seems to be higher aswell. I don't know what the problem is, and if someone could help that would be awesome. It's really smooth looking in the demo, but it stutters like crazy in game.
http://www.mediafire.com/download/ryjac69igmhda2d/whyisthishappening.dem