The best thing you do is add as much 32 bit RAM as your machine will hold...
I agree. Load it up with as much RAM as possible. Foundation Imaging, the special effects company for seasons 1-3 of Babylon 5, used Video Toasters with 32 megs of RAM. So, you should match, if not surpass, what Foundation Imaging used.

That should help with OS 3.1 to 3.9,
Robert Bernardo
Fresno Commodore User Group
http://videocam.net.au/fcug