Well, 175 and 25Mhz might be too slow, but 233 and 50 Mhz are fast enough to play any game. I used to play Testdrive 2 on it and it is really fun.
Get the WarpOS version from here:
http://www.amiga-forum.de/files/uae-0.8.12-R1WOS.lhaYou have to create your own config file (no GUI) and of course you have to tweak the performance options.
320x240 lowres, skip 10 frames and use mono audio at 11025 Hz should make it.
Bye,
Thomas