Unfortunately, I can't really think of much that could increase the performance besides frame skipping - does the Amiga FBA have auto-frame skipping? If not, you might want to try and ask HunoPPC to add that feature.
In the next release of FBA the Megadrive emulation will be slightly more cpu demanding, but the compatibility and emulation is now near perfect. On my ancient p4 computer it barely touches the cpu, though, so you needn't worry too much.
best regards,
- dink
@dink
Ok maybe a bit unrelated but do you think it could be possible to increase the performance of the Megadrive emulation ?
In the AmigaOS4 port of FBA i'm using i conducted a lot test related to the MegaDrive and in all of them i noted that turning off the audio is often the best solution to gain decent performance reaching the famous 50/60 FPS
Of course my Amiga in general is a bit slow so i will never expect 100% speed for any emulated hardwares of FBA, however other platforms such CPS-1 and CPS-2 are both a lot faster compared to MegaDrive so i wonder if somethings can be done in term of optimization :-)