What we’re looking for here is any setting that may control the size of what is displayed. This setting will vary on different Android devices. Below are some screenshots of some settings on my phone that could affect this:
Display Size is set to Default
Font Size is set to Default
I cannot locate an “App Scaling” setting. I have tried under “Display” and used the Search facility in settings but all that is returned under “scaling” is “Display Size” which is as above
I’ve enabled diagnostics on your account so the team can take a closer look. Can you try starting up the Nexus 9 remote and let us know when you do so? After the diagnostics report reaches us I’ll pass it along to the team for investigation.