Here are the answers from my experience:
1. Go into the tower at, I.E. it is the default. And lower clip board.
Wait about 15 secs doing nothing. Now look right, Did the View stutter as it paned around?
(Yes)
2. Release the right view ,after you have been looking forward, look right again, was there stuttering this time?
(No, or a small one at most)
3. Turn off detail terrain, Save it by pressing ok, Exit game , then repeat test 1 and 2.
1. (No)
2. (No)
4. Fly online with detail terrain OFF for a while, did almost all you stuttering go away?
(Yes, was very smooth)