When a layout drawing has a lot of details with a very intricate model in them, Rhino can slow down. A lot.
The workaround I am currently using is to make the display mode in all the details wireframe while I’m working on it and switch them to shaded or rendered mode when printing. I even have a script from Peter Harris (Detailstools) that helps streamline this.
Having recently discovered the BBox Display checkbox in the Display panel, – which helps us move around in modelspace faster - I noticed that this also works in layout space, but it doesn’t seem to make much difference in speed. Any thoughts?