I have done the same to make UFE run with Photon. On Mobile Devices just change play around with Min Frame Delay and Max Frame Delay for me these values worked on android.
Min Frame Delay = 10
Max Frame Delay = 15
Hope this helps you. Right now i am working on some how fixing the lag in photon using the same architecture. It would be great if you can share some of your progress. Some thing to help me reduce the lag in it, any suggestions from anyone would be greatly appreciated ?