I’ve been using blender for a few years and have never had this problem. When I try to rotate around a model it occasionally stutters or lags a small bit. It messes up my momentum when I can’t properly pan and rotate around my model. I don’t understand what’s causing this and I’ve not found any other posts depicting similar issues.
For clarification, I have a mid-high end PC. I’ve never had this issue before, even with models in the hundreds of thousands of polygons. But right now even on the default startup with the block, I get occasional lag with panning and rotating the view.
nVidia GPU I assume. I’ve reported this issue several times on the bug tracker, but it was always ignored as it happens only on Windows (the platform they don’t care much about).
Vsync will help with viewport navigation latency, but not the actual lags. The lags happen on nVidia cards due to the under-utilization. High performance mode prevents GPU from constantly going idle and having to wake up. You should look for an equivalent setting in AMD drivers, but Vsync alone won’t help.