I have a good rig, its an 8800gtx, 3.4 e6600, 4 gig ram vista x64

I was a little concerend with my frameartes as using fraps it was going down to 30 fps at times, just in the tutorial. but then i strated  a game and it seemed ok, though i didnt build anything, just zoomed and changed angle etc, but it didnt drop into 30's- isntead it stayed at 60 (vsync must be on by default).  Anyway, am i allright, is this just the tutorial which does this?

settings are all maxed, with aa on 2, latest drivers and game.