TV sync stutters on 4K

Hello!

I’ve got a TCL 85Q9BK with Google TV and I have installed Hue Essentials. I’ve tested Sync and works fine while streaming 1080 on Stremio, but when I stream 4K the image stutters. Is there any way to improve this (like changing settings)? Or is my only option getting an external device like Nvidia Shield (besides only streaming 1080)?

Thanks for any tips and help!

I have a similar issue with my TCL 65MQLED85K. 1080p looks good, but not perfect. I can see small fps drops. 2k or 4k videos, fps drops like 5. When I tested the free version for 30 seconds, it was fine. I bought premium, and I see it’s not working well. Looking for a way to fix it. I don’t know how it captures the background image, but it would be nice if there were a bit more detail in the settings.