Choppy HDHomeRun on Docker Plex

Server Version#:
-docker server 1.41.4.9399 (linux mint proxmox vm)
-windows server 1.41.3.9314 (laptop)
Player Version#:
-Plex Web 4.143.0 (Edge Version 132.0.2957.140 on Mac)
-Plex for Mac 1.150.2.269-12a32491

Hello,
I have Plex server :
-on a laptop windows with Nvidia GTX 1060 + Intel HD graphics 530, 5 gigabit ethernet via usb wavelink adapter
-inside docker with RTX 3070 : linux mint proxmox vm with GPU passthrough , 10 gigabit ethernet

Both serve the same media shared via truenas proxmox vm with zfs raid 5.
Both access local French TV via HDHomerunConectDuo (cable TNT > ethernet > lan).

I encounter a problem with French TF1 channel (and all other channels) served via HDHomerunConectDuo :
-it plays well via laptop windows plex server
-it is choppy (pauses every second for a second) via docker plex server

Both servers play 4k hdr videos well with and without transcoding on the lan and on the internet.
They have all same server settings.
Transcoding/cache folder is local for both servers, reading/writing on local nvme disks.

When it comes to HDHomerunConectDuo to watch TV, it works well with the windows server, and it is very choppy on the docker server.

I would like to eliminate windows server on laptop and only use docker server because it has 10 gigabit ethernet and RTX 3070, and also not to have to update libraries on two servers. But for now i have to keep both servers because of the TV choppyness.

HDHomerunConectDuo works well on all my LAN devices,
but is choppy with docker plex server.

Choppy Live TV happens on all LAN and WEB devices (windows, web browsers, plex player, apple devices) when i watch TV from the docker server.

Also while testing i noticed a bug with iphone :
-if i close plex app via swipe without stopping playing video first, server continue to keep transcode session when plex client app on iphone is closed (iphone SE MMXJ3ZD/A, ios 18.3)

Jellyfin docker test :
I tested HDHomerunConectDuo with Jellyfin installed inside the same docker server as plex.
I have no problem with playing live tv using HDHomerunConectDuo with docker jellyfin.
So it looks like the problem is with docker plex.

Apple tv 4k :
On apple tv 4k, it does not transcode, it direct plays, live tv is not choppy, so looks like the problem is related to transcoding.

Please help to solve docker plex choppy live tv :slight_smile:

Screen capture :
-on the right : server dashboard for both servers, you can see Live TV transcoding happening
-on bottom left you can see HDHomerunConectDuo two tuners serving 5mbps to the LAN
-on bottom left next to tuners, you see the two live tv screens showing french TF1 channel, left screen is choppy (docker plex server) right is OK (windows plex server)
-on the top left you see btop (cpu+network) +nvtop(gpu RTX3070) on linux mint docker plex server + windows task manager (gpu usage Nvidia GTX 1060)

Other pictures :
-settings for both servers


Plex Log :
Plex Media Server Logs_2025-02-02_12-27-38.zip (954.7 KB)

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