They haven’t been checked yet. But if turning down the GOP helped, I suspect you’re decreasing the cpu needed to decode the video streams, which would align with just generally reaching the maximum resources of the Apple TV.
As Channels is an open system, you guys have the ability to send anything you want. There’s only so much we can do to ensure a positive experience.
Multiview seems to handle the out of box supported content that Channels provides for everyone. It’s going to be up to the user to figure out if the streams they bring to Channels work or not in an environment where up to 4 streams are playing at once.
All that being said, there probably is not much more we can do to optimize on the Channels side, and at some point, some streams are just not going to be suitable for Multiview.
This goes for a single stream as well. You can hand Channels an 8k 120fps video, but it’s up to the hardware on if it’s going to work or not.
On a positive note, we may have all found a reason to upgrade Apple TVs as they are released 




