I just got a Sony TV with Android TV, and as much as I like the picture the TV produces , it's a fucking mess. It is slow to respond, volume control works in the weirdest way - it goes from 17-21-25-28-32 and so on, and it doesn't even display as soon as you start turning it up/down. The apps are very slow to respond and there isn't even a native browser... It's such a mess..
I had an LG that worked blazing fast, but unfortunately the pixels on the panel would keep burning , and I got this hot mess on my hands now, have a few more days to return it and I dunno if I should...
Get a device that is actually designed to run it? I'd recommend a Nvidia Shield.