I'm confused as I get no issues with my set for operating speed on the android smart system, I actually swear by Sony
I have the 49XE8004 - fantastic picture and Android OS should be a plus. It isn't - can be annoyingly laggy at times. The latest firmware update (LINK) is meant to solve some of the lag but I'm not convinced. Changing some settings (4 processes, kill Samba/SonyShare) does help for a while.
XE IS 2017 model. Andriod sony tv (y) if you know what you doing and what can be used for.
I thought higher end Sony TVs use more powerful chips to drive the set i.e xe93 works just fine with android and very responsive. Not sure how lower end Sony sets perform though with Android.