Notes app on iOS 14 very slow

Made it work by copying the laggy notes entirely and pasting them into a New Note. Navigation/editing is quick again.

Turning cellular data off solves the issue for me. I also have personal hotspot off. It's worth understanding that word-processing programs on computers (and, evidently, on phones as well) start to "act up" and lose memory when a document is too long. One must break it up into several different documents. If your note becomes overlong, end it and begin a new note, 'part two' of the same title. And parts three, four and so on, if you are writing something that is thousands of words long. As a novelist, I have pages and pages of "notes" for whatever book I am writing, and for other books I may be outlining. I add to these notes and modify them all the time, so each Note is very lengthy. I now divide each one into several different "Notes" documents, labeled with the title and I, II,III,IV and so on. And by the way, it's clear by now that no one at Apple reads this. They are very helpful if you call their technical support, however. I have called them for computer issues several times. Not for the iPhone as yet, but we'll see..........

I’ve piled into this clown bus elsewhere, but HAPPILY note (pun not intended, but what the hey) that the iPadOS 14.2 update changed (fixed?) this. My worst case ‘Note’ instance now rocks with the former speed (alacrity, celerity) as in before the point release that introduced this bug.

TL;DR Bug introduced earlier, appears fixed by iPadOS 14.2

I'm not gonna argue with you, but it appears that this bug was introduced in some version of iOS/IPadOS 14.x and then escorted out the back and shot (idiom for removed) in a subsequent release. I had this problem too and it was as big a showstopper for my writing project as for anyone else. Long story short, I did update to the subsequent release and that (usual disclaimer) fixed it for both my Phone and iPad. <Whew!>

Same issue. Based on the suggestions,

copy the entire note to a new note and delete the old note. That fixed it for me

Copying some text in notes and pasting it in a new note solved the problem op slowness

I’ve got many Notes files on my iPhone 6s. I’ve got one commonly used note that has over 6,000 characters. Editing this note since upgrading to iOS 14 has been a nightmare, just like the others here.

I copied all of the contents of that one note (nothing but characters/words) pasted it into a new note, then deleted the old one. Editing the new note has the same speed and responsiveness you’d expect.

This workaround works for me. Apple will still have to eliminate the bug. Good luck!

Review Settings. I have fixed the problem through Settings, by doing several things. I cannot tell you which one worked but start with the following: disable cellular data on the Notes app, disable Predictive spelling as well as character preview and slide to type on the keyboard page; disable "access within apps" and any other of the zillion things that the phone automatically signed you up for that you never use.

1. You must stop adding to your note. It can't remember any more. End it and begin a new note, a 'Part Two" of whatever it is. Going forward, divide Notes into several parts if you are writing lengthy documents of several thousand words
2. Turn off cellular data

Have you tried Settings - Cellular - disabling cellular data for the Notes app? Worked for me!

Settings - Cellular - disabling cellular data for the Notes app worked for me.

I changed to dark mode , didn’t lag one bit after that

Try it:)

Actually got the info from Bougainvillea42

whose original post had a few more ideas as well:

“Review Settings. I have fixed the problem through Settings, by doing several things. I cannot tell you which one worked but start with the following: disable cellular data on the Notes app, disable Predictive spelling as well as character preview and slide to type on the keyboard page; disable "access within apps" and any other of the zillion things that the phone automatically signed you up for that you never use.”