I have tried putting NTSC games on my pal wii before using wad manager and the like, aside from mario 64 all games appear to lag and try to display in 50hz with messed up sound. does this happen for oot and mm, and is there a way to fix it?
The only way to fix that is to change the region firmware on your Wii which is a trick process I believe. It will basically make your firmware NTSC.