Automatic Refresh Rate Switching
The Android TV app now (as of version 1.2.11g) supports automatic refresh rate switching on supported devices. This requires Android 6.0+ and a display that supports the target refresh rate. The app will now automatically adjust your panel's refresh rate to a frequency that better matches the video being played if possible. This requires no special setup but can be disabled with an option in the settings page if desired.
In addition to the above, several improvements have been made in both playback and general performance. Get the update now on your device or through Google Play.