Unreal Remote Control method

I’m an Unreal Engine Developer who just step in a project which required remote control between devices. I’m using Unreal Remote 2 application in my IOS device to control on my project. Everything technical aspect is working fine but the high latency issue. The latency affect the whole gameplay is delayed. What can I do to reduce the latency? All my devices is with high spec and the networking is providing smooth connectivity. It seem is more like the application issue. Will there have another application providing same remote services which is fit with the Unreal Engine?