I come back with amiga emulation experience always with a game called Xenon.
All my tests are with A500 emulator: 68000 / 7mhz / Full ECS (extrachipset A500) /Rom 1.3/chip 1MB
I tried to install Happiga (PI3) : the game work nice witj Blitter mode normal or (wait for blitter) with fast copper or not
but it's too fast with blitter mode immediate.
I tried batocera (pc64bits) : good work with fs-uae if you put the game in folder Amiga500/amiga600 but not with amiga500+. In this case i don't where is the configuration case under FS-UAE (i don't search too much also).
I tried Batocera-recall box / Recall-box or Amibian all in PI3 and i think there are base on amiberry because it's the same way into the Amiga menu.
Recall-box : It work fine only if I put 68000 with 14MHz but it's not more an Amiga500.
Batocera/Recall-Box : it work slow but I cannot open the menu (black page and nothing else).
Amibian : I tried lots of menu configurations but still slow
and I tried WinUAE (pc64bits) : It work fine only if i put Cycle-exact (full) otherwise ....
I don't know if this game was baddly codded or something else but It strange .... and I think make an amiga emulator is not so easy :-)
Anyone have some answers or commentary ?