Hacking NTSC WADs running at 50hz

[CaptainPsychopath]

I could use some help. I've installed a few NTSC WADs on my PAL wii, but whenever I start them they run at 50hz with choppy audio. (with the exception of SM64 which runs at 60hz)

Any suggestions? (don't tell me to install PAL wads, I can't stand 50hz)