And that's one case where being way too fast does hurt

True, ZSNES gets destroyed with any games that use streaming HDMA audio.

Earthworm Jim 2 (sound effects)
Clayfighters: TE?
Breath of Fire 2 [T-German]
N-warp Daisakusen [PD]

And so on. Test those in MESS if you want to have some fun =)