SVP 4 + Plex Media Player + Plex Remote Server not working

Hi

I'm trying to stream the content I have in a remote Plex server and I can reproduce properly everything if I don't activate SVP4 but once I activate SVP4 the video is constantly buffering, stopping, starting again ....

I can see the effect of the black bars from SVP4 but no 60 fps at all and nothing near a clean reproduction for more than 2 seconds.

Do I have to configure something in order to stream from a plex server using SVP4?

Even SVPTube or online videos from plex news work like a charm but for some reason remote streaming from a Plex server is broken.