I have the same exact problem and I have the 570. I cannot play the game anymore because of it. I have 16gigs of ram and I7 Processor and I don’t get over 30 fps and thats on a GOOD day. I hope this is fixed too because this is my favorite MMO right now. I run games like BF3 with Ultra settings at 50-60 fps and I actaully lag in GW2 on lowest settings.