I have been trying the MK games in the latest versions of the FBA core. They run full speed (54.7 fps for these I believe) as long as Run Ahead is set to off. However, even if full speed I can clearly see they are much smoother in MAME. The moves and scrolling is much better in MAME. They are full speed though, music is on sync, no stutters, no frameskip. I know these games are particular in the sense they are not 60hz games, I suspect some option might have something to do with the difference but I can’t really find anything. Any idea? Thanks!