I have just recently installed 3DS Max 2021, and I've used a lot the previous versions. I had hoped that I could teach my students how to model in this one, but it lags LIKE HELL.
I'm not exaggerating, I get like 3-10s delay when switching from any selection mode to another within Edit Poly. I get the same delay when trying to pan, changing move to rotate or any other thing. It lags A LOT. And I had only 44k polys. This is going crazy, both on streaming for online class and on my own without any other software on the background.