Every time I launch Final Fantasy XI I get into the game for about five minutes( if im in a mid trafficked area) and the drivers crash. If I am in a high area its faster and a low area its slower. I am assuming my GPU can't keep up with the processing in this game. However, this is absurd, It keeps up with several recent games fine such as GW2. Does anyone have any idea why my computer is doing this?
Things I have tried:
Redownloading drivers from nVidia (newer and older)
Changing the timeout time on the router
lowering all graphic settings on ffxi
memory test (passed)