Dolphin 4.0 - Choppy/Studdering Audio

[Shonumi]

Well, you're at 2.6GHz right there, I doubt reaching 2.7GHz or even 3.0GHz would make that much of a difference with the speeds you're getting. I think we can safely say this is a case of your CPU being inadequate for Dolphin, even for average games like SA2:B.