It looks like it's running in Chip RAM or Zorro II RAM, or some other very-slow-RAM. I'm wondering about the Mediator - I've never had one (Prometheus here), but I believe you can use the graphics card RAM as Fast RAM which will be very slow to read from (graphics card RAM is very fast write, very slow read). I assume you'd need to load the driver to enable this, but may be worth checking.
The first thing I would suggest is to find out what the highest priority RAM is in your system; I believe ShowConfig should tell you that (from memory)?
Edit: Also, what version is your SetPatch?
