Running a decent system - Ryzen 5 w/ RX 580 & 16 GB RAM and FreeSync monitor. Mame is running like a champ. Not sure if this could be some weird video configuration or a known issue in Big Box, but here's what happens:
I'll go to the Settings menu to Search or Unlock or Exit, and the highlighted menu will sometimes lag out. I'll hear the audio "click" as if the menu is moving, and if I press buttons, it will sometimes seem to process it (say if I'm entering my unlock code), but it seems like the visual elements just get behind. I'm running the Unified Remix theme. I've experimented a bit with other themes a little, they seemed to do, but I'm going to do more research.
Has anyone else seen this?
This is a brand new computer, so there's very little on it. One random, weird note - I was living with it and installed Steam and Dragon's Lair. Dragon's Lair is very choppy on this box, but on my 5 year old 4th gen i7 w/ very low end AMD GPU, it runs Dragon's Lair super smooth. When I disabled some freesync/v-sync settings in AMD's drivers for Dragon's Lair, it dramatically helped with the choppiness (although it's still not as good on my much older computer). So, I'm not sure if there are some setting or configs I'm not looking at that I should.