Have you tried using a higher resolution? If that's a dual GPU...you are not even pushing your GPU's to the max IMO. Try running at 1080P resolution (1920x1080).
I tried running at 1920x1080 but it didnt run any better obviously, lol. Like i said, at that resolution i can max out BF3 but this game makes my computer FPS drop to the 40s?
just seems really damn wierd is all.