It needs it, Android TV is just so inefficiet as a TV OS. I'm not sure why as Google have had some success in getting variants of Android to run on low end hardware with WearOS and Android One.
Interesting. My kd49xd8099 (approx 2 years old) doesn't seem to have any performance issue (ARM Cortex-A53 4 core, 2gb ram).
My biggest gripe is the lack of a functioning EPG on the satellite receiver.