From one of my other comments-I don't know what issue you have with your phone, but mine works fine on iOS 13. I am one of the few people who never had an issue with iOS updates, everything just worked fine after the update.
Sorry no its very far from it. I would pay to get iOS 12 on my 11 Pro.
I get random freezes even on the home screen and my new phone gets hot on the odd occasion.
I've not had so many freezes since iOS 7 days. It's terrible.
Even just now I'm getting random lock screen glitches when dragging down notification centre.
My iPhone 7 on 12.4.1 runs heaps better