Hyperion said that quake II engine is faster than original quake I..
If you find quake II, you can try..
Imho, i don't think so..because
on my amithlon system quake run about 60 fps (timedemo)
in 640x480, while quake II at the same resolution get only 32 fps (timedemo 1, map demo1.dm2)
On a real 68k Amiga quake II could be very very slow (in software mode) but fast with Warp3D (i hope)
