Sorry I should have supplied a bit more info. I’m using a Pi2 with an overclock of 1000MHz CPU and 450MHz Core.
I’ve tried using both the A500 and A1200 presets and also tried changing up some other CPU/RAM settings.
I checked the github for UEA4ALL2 and the last bit of development was March this year. It would be great to get USB joy pad (Buffalo Snes pad in my case) being able to control the GUI.