Excellent!
Can you download it from
http://www.retroreview.com/iang/mametiny0145.lha please?
If you extract it somewhere on your hard disk (it didn't work when I did it from RAM just now - not looked at it properly though), then start sh. I think it needs a /home directory. It
may work from a normal shell if you have HOME: assigned.
Then from sh:
export SDLMAME_DESKTOPDIM=320x200
That makes it spend less time on the display, and more on processing.
Then see how any of the ROMs do. They all struggle on my machines I've tested on so far, needing at best frame skip of about 6 frames (Peg II/A1) and the SAM needs about 10 frames. Looping doesn't run at full speed at all.
It's a "tiny" build so don't bother with any ROMs not in the "tiny" ROM set.
Do please let me know what happens. :)