iPhone lagging and slow after iOS 17 Update

My IPhone 13 has been considerably slower ever since I updated it to ios 17.


Its never been this way in ios 16!


while using safari, I am witnessing frame drops. My keyboard is not smooth. While check for background apps, It’s stuttering and the app overall scroll seems very sluggish and lots of frame drops.



i have more than 50Gb storage space available and my battery capacity is still above 80%.



Even while typing this, My keyboard seems sooooo sluggish!


please help me and suggest me some useful tips to resolve this apart from the usual force restart and all fixes!


[Re-Titled by Moderator]

iPhone 13

Posted on Sep 21, 2023 9:56 AM

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Question marked as Top-ranking reply

Posted on Oct 21, 2023 7:03 PM

I was advised to:

(1) Reset the dictionary back to the default (for me, that is just English)

(2) Make sure all apps are turned off

(3) Restart the phone

(4) Test the lag whether still happening

(5) Add back dictionaries needed.

It seemed to work for me thereafter.


Additional step suggested was to turn off the Predictive text in Keyboard as part of the above, then add it back in after restarting the phone.

215 replies

Oct 29, 2023 2:58 PM in response to JJRASC

I have the same issues, not only on an iPhone 13 but on a wi-fi iPad Air 5. Both were running perfectly on ios 16 but one of the ios 17 updates has caused freezing, slow updates and poor performance on both. they both have plenty of storage (96GB free on the phone and 142Gb on the iPad. If Apple won’t fix the problem then why don’t they resign iOS16 so people can downgrade. It’s pretty bad when you spend the kind of money that iPhones and iPads cost and then get poor performance due to the software.

Nov 26, 2023 8:45 AM in response to FA_Apple

You are absolutely correct! My iPhone 13 Pro Max with iOS 15, 16, and 17 has been the worst Apple experience I have ever had. The camera module was replaced - fixed nothing. The whole phone was replaced last August - fixed nothing and THEY FORCED ME TO NOT RESTOTE FROM BACKUP to troubleshoot. Now with iOS 17, scrolling stutters, apps struggle to perform, three touch screen didn't always respond, and I have more than 100GB free on my 256GB. I just had my 2nd gen Airpods replaced under AppleCare as they don't always connect. I hard power off 2-3 times a day...nothing helps! AppleCare is a joke and they only want you to reset the phone. I have 28 apps using face security to unlock and several authenticator apps that ALL have to be set up again after a reset. It takes weeks to get my phone AND APPLE WATCH usuable again. And forget about all this switches, settings, app data not part of iCloud - Adobe Reader for example - that are LOST WITH A FACTORY RESET. After more than 10 years of iPhone, looking very hard at the alternative.

Mar 19, 2024 6:41 AM in response to pallak64

Same experience with my iPhone XR. There is clearly some poor coding going on with iOS 17.4 or maybe deliberate action to force new device adoption. Up until this update I had no issues with the device and now simple actions are lagging even just swiping up to switch between apps.


I am a long time iPhone user and have optimized device fully and always clear my cache and perform force restart after updates. This is clearly on Apple and all we can do now is await minor update to resolve, that is if they intend to…

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iPhone lagging and slow after iOS 17 Update

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