pacMan running too fast I built a retropie out an single core raspberry pi. I'm trying to just build a mame arcade out it. "newer" 90s games run just fine, but some of the old 80s games start off fine, but then jump up to 300%+ speeds. i can click on F10 to turn on throttling, it'll go back down to 100% speed, but then 5 seconds later it bumps back up to 300%. frustrated that i can't get old games to emulate properly. using mame4all by the way. any help would be appreciated.
so far i have enabled vsync and set maximum run speed to 1.0x. the maximum run speed seemed to help. i got through a game of pac man, went and tried ms pac man and it came right back to super fast speed.