Just for reference. Using Frank Wille's port, v2.30, on a CSPPC 200MHz under OS4.0. The v2.40 uploaded to OS4Depot earlier this month doesn't work properly - there's a lot of graphics tearing.
Video card is a CVision3D on ZorroIII. Quake is at 320x240.
Quake68K under JIT emulation:
Timedemo for demo1.dem: ~10FPS
QuakeOS4 native:
Timedemo for demo1.demo: ~26FPS
That is all. :-)