When I have a file in 4k resolution, and I want to broadcast it in 4K, it stutters every time. But when I want to broadcast a FULLHD file in 4k resolution, there are no problems with it.
My CPU usage is low, and I use an AMD graphics card (hevc amf).
I tried changing the encoding on the input for example to mkv, mp4, even mov but it doesn't change anything.
I also checked files from local disk, from the network as well as from Plex. No difference.
What could be the cause?