Jellyfin in docker container

[hornetster]

Hi,
New-ish user here, was using Jellyfin several years ago, but have just come back, and trying to setup in a Docker Container on Ubuntu 26.04.
Have got it running, and seems OK, but, VERY slow to do with anything media-wise. 
ie website works fine, can scroll around, change pages etc quite well, but as soon as you select something to play - nothing, for something like 20minutes, but then it will start, and plays fine...

the .yml is here:

Code:

services:
    jellyfin:
        image: jellyfin/jellyfin
        container_name: jellyfin
        user: 1000:1000
        ports:
            - 8096:8096/tcp
            - 7359:7359/udp
        hostname: JellyfinIntense
        network_mode: "host"
        volumes:
        - ./config:/config
        - ./cache:/cache
        - /home/media/mEdIa/:/media
        restart: 'unless-stopped'
        environment:
            - JELLYFIN_PublishedServerUrl=http://lxxxx.sxxxxxx.com

 Obviously am not an expert at docker (or Jellyfin!)
Thanks,
    John.

[hornetster]

And as is always the case, one more reboot (after several..) and all appears to be working 'ok'...
Please ignore....