I do have the same issue that some FPS are just not playable for me, because of this. I'm still not sure what the reason is. I can play Battlefield 3 for hours,

I do have the same issue that some FPS are just not playable for me, because of this. I'm still not sure what the reason is. I can play Battlefield 3 for hours, but some shooters make me sick after a few minutes. Maybe it is a mix of things, for example I always disable motion blur and shaky camera. Also, the FOV is often wrong when using a 21:9 aspect monitor.