I'm just wondering if these rudder response times are ok. Noticed some strange lag and jerkyness in the display and today on a RTH after a waypoint flight the drone came in almost skipping like a stone hopping like a truck at a tractor pull.

Hello, there, Sorry for the inconvenience. Please make sure there are no obstructions and signal interference between the remote controller and the aircraft. You can test in different places.
Also, you are advised to fly the drone at a higher altitude to avoid interference.