Yes it is slow when it tries to refresh graphics. But I guess it has something to do with the option- Enhanced Graphics available in "Options". When you click that "off" there is some increase in speed.
You might as well try to change settings in "Undeformed Geometry" settings, I mean where you tell the program to show "labels" or " restraints" etc etc. Couple of things fill that area now
but I dont have the documentation because I am using the demo, accept my two cents worth boss
Only 3.5 minutes on your model dozer? On a model that size, you're doing better than what I would expect to see on my PC. It's not your computer's problem. The way SAP2000 works, either generating interactive database tables OR output results tables, since version 8 SAP is SLOW, no doubt about it. Complain to CSI. I did. CSI seems to be aware of this problem with database tables, but they tell me that it may take a while for them to re-program to correct the problem.