I've had this Sony 4k TV for just over 2 years.
When I purchased it it was fairly quick and snappy but now when I turn it on I have to wait on a black screen for 2-3 minutes whilst it's unresponsive. Even changing channels and loading the TV guide takes forever and that's a TVs main function!
Does anyone have any tips on how I can make my Android TV fast again?
I tried a reset 3 weeks ago and it hardly made a difference
Go into developer options (Google how to activate that) and change number of background processes. The setting seems to reset itself every once in a while, but changing that setting often speeds things up a lot I've found.