I turned that option off, but the worse performance of “Shaded” is still present.
By the way, I noticed that there is another topic on the first page with some people who also experience drop in performance in “Shaded” view.
I just uploaded a short video to show the issue. Upon switching to “Shaded” view Rhino 7 freezes for a while until it recalculates the mesh (not sure why it needs to do that) and this kind of annoying. This particular file was just 508 MB and Rhino froze for about 30 seconds. While manipulating the camera I easily felt the lesser framerate compared to my custom view modes. If a file is nearly 2 GB in size, Rhino sometimes crashes.
P.S.: Also, selecting mesh objects takes 7-8 seconds…