My limited experience SU primitive geometry contributes as second order impact on processing speed:
Usually its is the graphics processor and computational load of the image textures;
I some times save model and use that, delete all materials and see what the speed a nd program size is;
That at least gives you some idea of the problem facing you. The actions can be done:
Model work in monochrome mode since it reduces the processing load;
2 Save the materials as a collection. That creates a skm file and since you can open in the windows explorer you will have an idea of which materials are causing the problem and take action to change size if possible, usually it seems a few are culprits. ( If you want to open change extension to zip and the you can open.;
You gave no info on machine and sku version you have, but make sure the graphics card is set for operation when running SU. You can also particularize its setting for SU by using its control panel. My info on that is out of date but someone will have it for you. Can even give NVIDIA a call.
Select the widows styles and deselect enable transparency because that make process load more, also it sees thru the material or set opacity also., use layers to minimize processing load and scenes to help with navigation.
The new task manager ( came in about vista time frame? ) at bottom right corner has greatly expanded info ( resource monitor ) you can get, read its help, understand and then use that. It may point finger at problem area.
Shut down all other threads running you can.
Just some thoughts :smiley
