Each game starts out great with 90fps running smoothly... when not moving. For some reason after a few minutes there will be intermittent drops in fps when looking towards a new direction, when the screen renders a new scenery, or randomly when the server population is maxed out. The fps counter says that it is running a solid 60-90fps but the game will visually lag making it look like 30 fps rather than the reported values. Not sure if it is client side, but after the first hotfix in beta 2, it completely screwed up my performance.