Pretty specific MAME question
I'm not really confident I'll get an answer here, but can anyone tell me why the two vertically oriented Sega System 24 games (Gain Ground and Scramble Spirits) run very choppy no matter what machine they're on? MAME reports full speed, yet the game seems to run at 30fps.
Thing is, videos and MAME 0.99 have shown me that Gain Ground is definitely a 60fps game. And weirdly enough, Bonanza Bros in the latest MAME has smooth scaling backgrounds, yet choppy sprites. Is System 24 in a weird state right now or something? Because I just realized how awesome the original version of Gain Ground is and I really want to play the arcade version without ancient MAME or weird home ports.