alright so this is really bothering me, i have 10GB of RAM a GTX 570 with 2BG Vmemory, and a 3.2 Ghz Quad-Core AMD processor and my FPS is shit. like idk i get around 20fps in almost all areas it gets a little better outside towns and a little worse in major citys... but it really shouldn't be like this right? has anyone had this issue and gotten a fix?