Emu lags

I have a E4x Hollywood Gold Emulator and I'm having a problem with some lag. It only happens while the sequence is playing. Whenever I press any function or arrow or try to access a particular item anywhere onscreen it takes about three seconds for the cursor to move to that point. At first I though it was when I had too many samples playing, now I realize it happens even when only a few channels are playing. Any ideas why? (while I wait for my other problem to be resolved in the other section) 
