I have an episodic problem with typing on my iPad Pro screen. Sometimes the keyboard and screen is either non-responsive at all or very slow. I am nowhere near an Apple store so if anyone has a suggestion I would appreciate it very much.
Thank you
Are you on the beta? I’ve seen a few issues in iOS 12 with the keyboard but it is a beta.
Is the back of your iPad getting too warm while in use? If it is, you might have some issue that warrants a visit to the Apple Store or a hard reset. If not, I would recommend that you check the amount of available storage space. For some reason I had my iPad Pro start to get slow when I pushed over 100GB of data on it. Removing a fifth of it made faster again (even though I believe the amount shouldn’t interfere with processing speed… 
).