Thanks a lot for your reply! I am more interested in some console commands that can conveniently modify game performance in runtime. My students’ gears range from $2,000 Alienware with an RTX video card to $500 Lenovo with an AMD CPU. I would like the package game is more adaptable. The method I am using is to enable the View Mode Debug mode. But this feature has been buggy as well after 4.24. F1 for wireframe gives a black screen and F5 for shader complexity crashes the game instantaneously (error message shown in the screenshot below).