GODDAMM, Vamsi! Sh*t. Well, that ain't the final build, that's E3 build. Dun spoil the story fer meh!
DX9 (early build) = 60 fps, DX11 (ossum build) with HD5xxx = 35 fps. 'Nuff said.
Even I don't know the story. I'm played only one mission and skipped the cut scenes. To be more spoiler proof... I reduced the game's Voice volume, turned off subtitles. You can never be overcautious
Just Cause 2. This game waited for long enough. Now is the time.