Rolling on the river...

justabeginner

Getting comfortable
Dec 13, 2019
71
309
Alabama
I don't see anything actually wrong with the video. With that much zoom, even a tiny vibration affecting your PTZ camera will make it shake like that. Increasing the frame rate would also improve smoothness.
 
Increasing framerate will also require more storage if that is a concern.

It isn't as simple as that. That is only true if the camera is encoding VBR (variable bit rate) and the current average bit rate is below the maximum that is set.