Try changing your Graphics Mode in Studio Settings under Rendering and see which option fixes the problem, enable Frame Rate Manager too, see if that helps!
I’m having the same issue. Although Roblox Studio launches normally, it doesn’t work properly. The camera moves jerkily, jumping quickly from frame to frame instead of moving smoothly. This happens even when running a new, empty experience, suggesting it could be a Studio-specific bug. In my case, the issue started today; yesterday everything was working fine.