Philips Titan OS image quality

[geomusicmaker 4]

I recently purchased a Philips Titan OS TV and was relieved to find it had its own emby app. I wasn't able to connect locally but managed to get on via https.

I dont know if it's just me, but the quality of the image seems quite reduced (compared to a firestick on the same display) and the audio on some films refuses to play. Could this be because the app is just a browser wrapper and only has access to whatever codecs/libs the philips TV browser has? The image looks like it's getting the bitrate throttled (like a blocky h264) but the emby server says its direct play HEVC.

Anyone else experienced something similar?

Do the emby team have any thoughts/suggestions on this?

I'm sticking with my firestick for now but it would be great for the titan app to be improved if possible.

P.S.Out of curiosity, is the LG TV app a web wrapper too or is it proprietary? That works really well.