iPhone lagging after iOS 18 Update

even the 16 pro max homescreen animation is choppy

I am having the same problem, when you try to open an app, it is very slow about loading,ios 18 slowed my phone down I have iphone 15 promax

The latest update 18.1 that I installed today 01-Nov-24 has fixed the main issue I had with Notes being extremely slow. And it seems to have helped most slowness on the phone (iPhone 15 pro max)

I updated my phone to iOS 18.1 and did a shutdown and recovery and it fixed my phone and now it’s back to good performance

I would like to be able too delete the updates and go back to the 16 update that was working great

Doesnt work. Im more concerned about my issue with the icloud backup storage bug. When I go to delete old backup and backup again the icloud storage increases by a lot. I think one way Ive worked around it is when u go to turn on backup again, toggle off the section that says backup over cellular. Honestly if youre on wifi you shouldnt have to backup on cellular. I think it mightve been using both cell and wifi data at the same time thats why it was increasing so much. Im still playing with it. Im convinced it wont be fixed for like a year or so.

Anyone experiencing the ongoing device setup bug? Its under settings>battery>ongoing device setup It usually only last a few days then goes away but lately it popped up again. Ive been reading from others this has happened for them too. No clue why. Good thing I turn off my phone every night when I go to bed.

Any article that starts by suggesting you force-quit all your apps is suspect; they have no idea how iOS works. Those apps are not consuming resources and you're actually working against optimizations in iOS.

You should only force-quit an app like that if it's misbehaving.

i’ve updated the iOS to 18.0 on my iPhone 14 Plus, I’ve been seeing too many glitches where I log onto my phone to the main screen and switch over the pages to get to an app and it goes blue. Another issue my contact in messages show phone numbers rather than the contact name until I open the direct message and it shows the name instead of their number.

I remember years ago I was told never to download the first IOS to wait for the .1 or .2 to then update because .0 will always have glitches. Apparently it is true so far. I have even tried to turn off my phone and restart it but it still does the same thing.

THIS WORKED PERFECTLY!!

I read through this entire discussion post and this was the first solution I tried and it was easy and it worked.

The search and Siri settings pages have been separated in iOS18, so I just toggled everything off from both settings pages. Then, I powered off my phone and let it rest for a couple minutes. Powered back on, turned all the settings back on, and ALL ISSUES have gone away…

Note: your phone might lag a little bit while starting up again, make sure to close all tabs and let the software boot up

EDIT: I realized the reply function doesn’t really work so the original post I was quoting does not show. I mostly outlined the process of fixing the iOS18 lag issues, but if this explanation isn’t clear just find an earlier post of someone talking about search and Siri steps.

Of course they don't do it on purpose. That's just an illogical myth peddled by conspiracy theorists. It would also be illegal in most territories. Even the battery throttling saga landed them in legal trouble, and that was a perfectly understandable decision just implemented and communicated poorly. It's in Apple's interests for their phones to have an excellent reputation. This is a very annoying bug, but it is a bug.

After upgrading I am facing lagging issue while typing text. Some time typed lot of letter but they don’t appear and comes after some second.

i have 45 GB of free space

background app refresh is enabled for few important app.

not sure what’s problem. Hope Apple will take care this in upcoming upgrade.

it’s should not happen iPhone 12 and later phones.

If it wasn’t for my son I wouldn’t be dealing with another broken apple update. Oh dad you’re being ridiculous apple isn’t Microsoft! YES IT IS.

proved him Wrong! Apple never disappoints always predictable updates breaks everything just like Microsoft

I’m on a XR and I almost got into it with my phone lbs it’s laggy at times and if u need to get warm all u gotta do is put this bad boy in your undergarments and boom your body temperature will rise again !!

I swear I feel like I have a ticking time bomb on my hands .. perhaps if it’s able to update on the older models .. maybe it should be optimized more or something to fit the standards of the older phones cuz man it’s annoying

Whatsapp is worst among all. Every 15 mins I am clearing Safari history to clear up some memory and it helps for 5 mins then same ****.. This is really bad.. phone is not even one year old and how can you have this bad of OS.