I have "GPU Scaling" as an option and it is off, in the "Display" tab and in the game specific tab.
Something is terribly wrong here. To give you an example, I was running with a knife chasing a guy, he was with weapon and he outrun me.
At this point I wonder if the GPU is powerful enough for 1080p since my 75hz monitor's native resolution is 1600x900 and games run fast there.
But games such as CS:GO, CS 1.6 shouldn't be any problem for such card.