Would it be possible to hack a specific game to run at 30 fps instead of 60?

[JMC47]

RachelB: There are a few games that you could modify Dolphin for that work with a 30 vps hack. Melee, Brawl, Wind Waker, and Twilight Princess all get speed benefits from the hack, even though the Zelda games were already 30 fps. That actually does give a fairly big increase to FPS, or at least it used to. Nowadays with the GPU thread limitedness of Dolphin, it'd probably be less than 5 - 10% in dualcore mode.