I'm experiencing trouble achieving playable speed with 5 ROMs, namely Mortal Kombat (Rev 5. O T-Unit 03/19/93), Mortal Kombat II (Rev L3.1), Mortal Kombat III (Rev 2.1), Ultimate Mortal Kombat 3 (Rev 1.2), and Night Slashers (Korea Rev 1.3 DE-0397-0 PCB). FBA Lite, the arcade emulator I'm...