Totally seems like it helped me!

Tested in stormwind, and before the change I had 60fps, but it "stuttered" every few seconds...

After the change, I had 60fps, but it seemed far more smooth.



Mine said "Performance" in the Power Options too, but when going into Registery, it had the code for Balanced... WTF VISTA?!?!?! At least it's changed now