Is it just in the loading screens and stuff, or the entire game? Maybe it needs V-Sync, or something. Is there an option for that in the settings? Or perhaps check your graphics card's program. I'm not sure what nVidia's program is called, but it should be able to let you tweak settings specific to that game, or just general settings for everything. Maybe for some reason a ton of post-processing stuff is turned on that shouldn't be or something