Is this normal?

[RushJet1]

This is because Crysis is made for your hardware, while Dolphin is basically translating everything to your CPU. The translation itself takes CPU power, then processing the commands takes power, and if the translation isn't perfectly optimized (it isn't, I'm sure), then you get even more overhead. Technically, I'm guessing they could actually do triple-core if they could get the translation of the CPU instructions on one core, the running of the actual instructions on another, and the translation of the GPU instructions on the third. Currently I think it's one core translates and runs commands while the other handles GPU instructions. I don't know if this is really possible, but it'd be cool if so.