Has somebody archieved porting NetworkRigidbody on Photon without getting lag?

NetworkRigidbody aka NetworkTransformSync is a script that interpolates and extrapolates objects making them really smooth and without delay

I changed all the references and made it work , however since it is not made originally for Photon , it has lag.

I am pretty sure one of the reasons is since Photon and Unity Networking have different sending rates.