Ok cool, they actually have a newer driver (260.99 vs. 258.96), should I try that first?
Edit: holey crap, I installed that new driver, and instantly I've noticed a difference, I haven't even played yet, but normally when I open the game, the mouse and the menu (like when you hover the mouse over a button and it changes color) are usually super super laggy, like for 1 second i can move the mouse, then 2 seconds it's frozen, I usually click play, it freezes then i click select gametype and quick choose a gametype then it goes in and out of freezing for a minute or so, then it joins a game, but this time, it launched the game, and bam, no freezes at all whatsoever, it's an incredibly huge difference. I'll keep you guys updated on what happens next.