Dolphin, the GameCube and Wii emulator - Forums

I also had a huge slow down in brawl, then I checked out Native and 4:3 in the open gl plugin config. my FPS went up to about 40 fps... not as fast as before but much better... maybe you should try this...

I've found a great solution!
use older revs (35xx).
replace your old audio plugin with the new from 36xx.
Then you have full speed and sound!
You will be able to play tloz ww and smg with sound and full speed.