I seem to be getting really bad stutters with Chaseplane at the moment. In the cockpit view it's not to bad but the external views and also the replays especially are really terrible at the moment. This is anywhere and not just the usual fps heavy places like Heathrow. I'm running P3Dv4.5. Anyone else experiencing similar issues?

Also had that one session, where every time I panned the camera, I would get this insane stuttering under 4.5. So I upgraded to the experimental channel and next time I flew, it seemed to have been resolved.

If you have Game Mode enabled in Win 10, try shutting it off. Just search in the windows settings for it and disable.