iPhone keyboard lagging after iOS 18 Update

This is exactly what fixed it for me. I had tried resetting the keyboard dictionary, which didnt work. But turning off “predictive text”, “auto-correction”, and “show math results” completely removed the keyboard lag I have been experiencing since updating. If youre experiencing this, i suggest turning these features off if you can deal with auto correct not being on.

Settings —> general —> keyboard

Unfortunately, i don't think it will help. I wrote a few weeks ago that for me it started with iOS 17 on my olf iPhone 11 Pro.

I got that phone new when it launched, and it still has 91% battery health. The keyboard lag was so bad that it made me buy 15 pro Max, but the problem is still here.

The only thing that helped me was to delete one of the languages on the keyboard, so now i only use my main language. Also try to delete the dictionaries that you don't use. It will be annoying to type in another language (apart from your main one), but i managed to get rid of the lag.

So don't make to many expectations regarding the battery change🙁

On my phone it’s the settings called “predictive text” and “Check Spelling”. Disabling those made the lag issues disappear…been running that way for a couple weeks, so I’m now turning predictive text back on to see if the lag comes back…if not, then I’ll turn it off and enable spell check and test that.

i've tried turning off auto correct, predictive text, slide to type as many other people have suggested and from my experience, that is NOT a fix. For my 16 pro max, the issue seems to be coming from haptics. If i turn off keyboard haptics, any keyboard lag that i've had in ANY browser disappears. When haptics are on, that slight input lag accompanied by keyboard sound delays appear again. Putting the phone in silent mode fixes it with haptics on for some reason too.

I have finally figured out the problem, and this works for me. I have disabled the keyboard haptic feedback and the sound. After doing that, the lag has disappeared. The lag was coming due to the haptics not being able to keep up with my typing speed, which is the sad reality. I have an iPhone 15 plus

For me with an iPhone 12, since 18.2 the keyboard is gotta be 95% better,

but I just wanted to share what my current settings are, so that maybe other people can maybe replicate what I’m experiencing?

i got two dictionaries downloaded, the Apple dictionary and the new Oxford English

Auto capitalization, auto correction, predictive text, check spelling, smart grammar punctuation, character preview and the “.” Shortcut enabled. Everything else in that list Is disabled.

auto dictation is on below that. And emoji stickers enabled.

and so far I will say compared to how things felt before, it’s significantly less lagy. The lag before like was 3-5 letters behind for me. Right now it feels like maybe 1-2 at the most.

I think i have finally fixed my issue. I went to settings>accessibility>touch accommodations...i turned off touch accommodations. Now when i touch a key it responds!!!

FYI for me it’s auto correct. When it’s disabled in settings, along with predictive, the lag is gone. So clearly Apple screwed up auto correct and predictive as usual and now typing is a nightmare on these phones. Time to switch back to Android.

after trying every suggested fix - I finally managed to stop the keyboard lag in my notes apps

it's the new "math results"!!!!!!

default on all individual devices is to "suggest results" - switching this to "off" has made all the difference in the world = notes typing lag is completely GONE

iOS location is the 'three dots in a circle' drop down

Mac OS location in 'format' menu

so much relief as I've wasted hours logging in and out of iCloud services, deleting and re-installing the app.

hoping this helps others

I read that the update added the Dvorak layout so after removing all but the original keyboard, English US, I opened that keyboard and chose Dvorak. It worked! I went back and selected QWERTY and now the keyboard is back to normal. Hope this helps.

So I just disabled predictive text and it seems to be a lot better. Probably 90% better. I’m not sure what predictive text does anyways because I always misspell everything I type and it’s auto correcting just fine here.

Its really bizarre this many people are having rhis problem and apple has done nothing about it for years.

It doesn’t matter what app I’m using or how many times I have disabled haptic feedback, deleted the keyboard, shut off predictive text etc. Nothing works.

When you start typing it’s like starting a countdown. The more characters you type the worst it gets. For example right now it’s starting to slow down to the point that is almost unusable.

The only way I fix it is by copying the text, force quitting the app and then re-opening it. That restarts the “countdown” and gets me a few more answers until I repeat the process.

The only thing that I have not tried is getting a new battery. I know that sounds ridiculous but I have tried everything else and when I look up the condition of my battery it IS degraded……

I have ordered a new battery and I’m waiting for it to get here. In the meantime if you are reading this, open up your settings and click on the battery health. If your battery is degraded significantly and your keyboard is lagging can you let me know? Thanks!

Everyone you need to do a clean install after a big update.!I did everything and finally I remember when I went from 16 to 17 it’s was a similar issue apple isn’t doong anything because Ionce you do a clean install there is zero issue. I did it to my whole family’s devices and zero issue keyboard is so fast I can’t even type fast enough to have any lag. Your welcome everyone do a clean install and boom restore from iCloud back and zero issue I have a brand new iPhone again thank the lord and I didn’t have to download Microsoft keyboard!!! Apple you have restored my faith and do not download temu on your phone that slows the phone down as well. Merry Christmas

Good advice! I disabled the predictive text and seems like the lag is gone. Writing is a little bit hard now, but it’s kind ok…

Thank you so much!