HD51 4K VOD stuttering

Have openatv 6.2 installed. Iptv plays fine for me even on 1080p streams but when trying VOD from provider they all seem to stutter. Using various plugins for playing them. I don't have the best internet connection, they are all very high res but 1080p steams plays fine all the same. My mate on the same provider has a far less powerful h2s but better internet connection and they play fine for him. My gut tells me it's more than the internet connection.

Anyone else seen this or know a solution?



It’s probably the format there compressed with.
They prob h 265 with causes a lot of video players problems.
Most are awaiting new codecs to fully support.