What Apple’s patch notes never tell iPad fans is that updates can and will sometimes slow down older iPad models. On the downside of things, there is no way to predict how your iPad will react to iPadOS 13.3.1 and the best thing that you can do is to avoid installing it for a while and check the forums. If you see other iPad users who are complaining about a downgrade in performances, then iPadOS 13.3.1 is not for you.
It has become quite a trend for the latest iPadOS updates to also introduce bugs and glitches. Even though Apple always fixes them quickly, bugs are still annoying and it’s always best to avoid having to deal with them by postponing the updated.
The last and most important reason to why you should not install iPadOS 13.3.1 is to avoid random system shutdowns. There are many things that can go wrong when you install a new iPadOS updates and the worst consequence is random system shutdowns. The problem with this is that you will more than likely have to visit an Apple-authorized service to have your iPad fixed and this is going to cost!