Things ive tried:-
- running the game at the lowest settings at 720p
- disable in-game vsync and use the driver vsync instead
- rivatuner to limit frame rates to 60 and 59.94
- all combinations of double/triple buffering
- windowed and fullscreen
Nothing makes the slightest bit of difference.
I know you said you are using a controller, but check this anyways:
Do you use a gaming mouse that has a very high polling rate? Try to use the mouse manufacturer software to lower the polling rate to 125Hz. I've read a lot of posts saying that this helped them.
