Hi,
When you have this kind of problem, make sure you test with the actual PUN2 demos, not the one made with PlayMaker, and check that they work properly or not regarding that choppiness, you'll likely find that it's the same and is related to a bad region selection ( a region too far from you will have lots of latency), or that you badly implemented synchronization, PlayMaker simply send datat and receive data the usual way and that's not the bottleneck for choppiness, it's either the network, or the photonView setup or a bad/buggy smoothing logic.
Bye,
Jean