Jerky Video Playback

My setup is Kodi 17.0 on Windows 10
I am using Geforce 1050 on a UHD 10bit 4k Screen
I have tried changing the resolution from 3840 x 2160 (Native) down to 1920 x 1080i
I have enabled hardware decoding and selected force DVXA.
The problem I have is my live tv and video playback are all jerky.

I don’t know what else to try to resolve the problem.
Anyone any ideas?

Cheers.

Extra Information:

I have tested my system with the UHD sample file playing it on MPC-HC using LAV Codecs and setting the decoding to DVXA2 (copyback) and the playback is perfect.