My android has started to get extremely slow recently, but I realised, somewhat unexpectedly, the culprit was Google'so "GBoard" keyboard app. Switching keyboar

My android has started to get extremely slow recently, but I realised, somewhat unexpectedly, the culprit was Google'so "GBoard" keyboard app. Switching keyboards brought it back to life. Other than that, I've had it over 4 years and had no performance issues. The battery lasts 2 days or more. I think quality control of app performance must be a big factor. And not just 3rd-party ones. Google are really not good at software performance where obsolescence is a concern - things can only be expected to be usable on new setups.