Using Logitech G502 with latest Ghub software, which allows you to choose the polling rate of the mouse.
When set above 125hz and moving the mouse ingame, it causes a severe stutter.
Slowly moving the mouse does not stutter.
Changing to "software cursor" has no effect, stutter remains.
Dropping the polling rate to its lowest setting cures the issue entirely.
Using a controller does not cause any issues.