Camera animation plays back with jerks and jitter.

Hi, I am seeing a strange issue whenever i animate a camera, and then look through it as it plays back.

See video here:

View My Video

That is a simple animation, the camera rotating in Z, 1 degree per tick. It SHOULD be playing completely smoothly, the fps stays above 60, although it does jump from 60 - 170 and back often. Why am I seeing this strange jerking?

Any help here would be greatly appreciated, I am tearing my hair out trying to figure this out.


Hi antithing,
is that something like my issue?