Have you tried a test reco

Have you tried a test record and then play that back on a larger monitor or TV? Or look at it in your NLE?

The choppiness could just be your viewfinder and the way the camera displays it there. Viewfinders are not the best for judging “what you see is what you get”. Because of their resolution their purpose is mainly monitoring camera control and framing the shot. Finding focus is hard on some of them.