I know what you mean, it has happened to me when movement is not fast enough for there to be motion blur but not slow enough for the 24 frames in a second to cause smooth motion. You get in this middle void where the video feels like it’s stepping. So it’s as easy as changing the frame rate from 24 to 60, that way you have enough frames in between so the motion doesn’t feel stuttering. Render times are going to jump a lot, but for a butter smooth camera motion it’s worth it.