gonzaaa.92I don't want to go back through the tedious procedure and downgrade. Also A9 had huge noticeable red tint which was very annoying to me.
I'd suggest you to stay with Android 9. I'm at 120Hrz and these numbers:
8hrs of on screen use time and still have 41% of battery. At that rate I'll be at 13.5 hrs (when my phone is at 0%) which is way more that what I've ever achieved on a cellphone.