4k streaming from NAS


as mentioned here I unable to install apps to my NAS device. Therefore I’m looking for solution for 4k streaming to my TV another than PLEX.

I tried INFUSE app with my 4k apple tv, but i can tell it has lowered quality from my point of view it has to be by NAS or transmitting protocol as the app has no setting for quality and their official site says that they always support highest quality offered from server. I connected it straight via server ip therefore I think it’s running via UPnP protocol. But I can’t find any settings over quality or so at my NAS. I also tried their DLNA server which is integrated in the dashboard but with same poor quality :frowning: any help?