I have a racing world where AI cars are navmesh agents for the person starting a race, and synced objects for other players. There are no scripts running on them for other players, it is just their position that is being synced. When they are close to other players, they will appear to stutter back and forth. The more players in the world, the more they will stutter. When in the distance, they do not stutter at all.

This is a new problem, it was not happening in prior builds of VRC.

See attached movie (sorry for the dual audio, I have 2 clients open to test)