The hardware capabilities and software is ok to run Kodi with Android. I have a 4k TV with less hardware capabilities and runs 4k videos (up to 25mbps avg bitrate, think about a devices designed for streaming) in Kodi or other players, through LAN.
The thing is that this TV Box is known to be infected with malwares (I didn't know when I bought it) and I don't know what risk does it take. Also I like messing with those things and learning, but this one seems to be challeging with this chip!
For the moment, what I am finding to be the best option is an unofficcial armbian build