Hi Mike –
Had the IT guy max out battery and verify all graphics cards are running and being used by SketchUp. Still not much better. The battery adjustments definitely helped a bit though. Apparently they thought this graphic card would be fine for running SketchUp/Revit/CAD, so no upgrade for me there.
I tested it on a new Macbook and it sailed through opening and, though slow, could export to Condoc. So I bit the bullet and bought a new machine last night. Keeping fingers crossed. I still need to troubleshoot this model to reduce file size though. Any suggestions where to start on that effort? Everything’s been purged, furniture & environment stuff deleted.