FWIW, FreeCAD does not use the GPU for geometry calculation at all. That’s done purely in software and insofar as I’m aware it’s not even multithreaded. Your GPU is only used in any capacity for final display, i.e. spinning the already calculated model(s) around in the preview window which it does via OpenGL. Otherwise it’s all CPU.
Spinning a complicated model around at 244 FPS (my monitor’s maximum display frequency) makes my GPU peak at all of… around 3.5%. Doing a total recalculation on said model or changing a feature on it spikes CPU load momentarily but doesn’t register on GPU usage at all. Doing the same on my laptop which instead has the usual early-gen Intel Graphics Decelerator in it doesn’t provide much of anything different in the speed and usability department. OP’s problem therefore surely lies elsewhere.















I think before any technical aspects are considered, you need to figure out what to do with the gibbering hordes of idiotic users who seem to be drawn to these sorts of forums as if by powerful magnetism.
I have been led in desperation many times to a Quora thread in my search results. I have never in many years, not even once, arrived at a Quora thread that actually contained the correct answer to the question being asked at the top. It’s useless cesspit and insofar as I can be bothered to determine it always was.