Slow performance and lag after iOS 26 update on iPhone

It's horrible. I mean I just bought an iPhone 17 pro and I have never experienced performance this bad on a brand new late model iPhone due to an update. I tested the 15 pro and 17 pro side by side with apple intelligence on and they seemed the same, maybe less heat generation on the 17 pro was noticeable. design choice for IOS 26 is even worse, it gives me a migraine. turning off Apple intelligence seems to help right now but I really hope these issues are addressed as in my perspective, they are causing a really bad user experience.

Viinturuth wrote: "My phone still lags and has become noticeably slower since the update"

Viinturuth ~ What model of iPhone is it?...

Settings > General > About > Model Name

And what point version of iOS 26 is it running?...

Settings > General > About > iOS Version

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Stevedup wrote: "It’s the worst update ever. Have to select icons multiple times before a response. Things are gone. Can’t block spam caller numbers. Etc.etc."

Stevedup ~ What model of iPhone is it?...

Settings > General > About > Model Name

And what version of iOS is it running?...

Settings > General > About > iOS Version

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Hi, the user interface issues can be caused by the user increasing sizes in different app settings including Safari, Accessibility and Settings. Some Safari extensions can modify website behavior and display on a global basis or for just a specific website. Third party apps might not have been optimized by their developers yet and can manifest as UI issues. I’m not saying it’s not Apple’s issue, but without confirming settings and performing necessary resets, no, the issues cannot resolve themselves.

tapherj wrote: "Mine is so slow and jittery that it's 2-3 second delay when typing and the responsiveness is far worse than early Samsung phones- I don't want to use this phone now and am not buying another device from apple. Great phone bricked by iOS update that can't be rolled back."

tapherj ~ What model of iPhone is it?...

Settings > General > About > Model Name

And what version of iOS is it running?...

Settings > General > About > iOS Version

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anneli291 wrote: "i have a Apple 13(bought 2 years ago)

86% battery health…"

anneli291 ~ Did you buy it new or used? ...If the latter, check its 'Parts & Service History.' by going to:

Settings > General > About

...Do you see a 'Parts & Service' section there?

If so, tap it and in the resulting pane, does it say anything about the battery and it being 'Genuine' or 'Unknown'?

iPhone parts and service history - Apple Support

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evb3 wrote: "any tips now that it has been months?"

evb3 ~ Any tips may depend on your iPhone model & iOS version. So...

What model of iPhone is it?...

Settings > General > About > Model Name

And which point version of iOS 26 is it running?...

Settings > General > About > iOS Version

õ¿õ¬

Apple support and senior advisors have even noticed the issues themselves. And considering the amount of people that are reporting the issues after this update solidified it as the root cause.

Soloved lag by;

1. Reduced transparenty on
2. Battery save mode off
3. Adaptive battery on

Now 100% smooth

Turning off Apple Intelligence almost solved the issue for me on iPhone 17 Pro max

anneli291 wrote: "...Apple devs need to step up. I’m not alone here.."

As we're just users, let Apple know about the issues with your iPhone 13 here:

iPhone Feedback

Get Support

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updated last Friday, the battery life is improving slightly, but the lag is unbearable, when you open an app or swipe up to go to home screen, it takes almost a second for the action to perform. Also the phone is overheating from normal use. It seems by the comments that its a common issue for all models bellow 15 ... I turned down transparency and turned off background refresh and it helped a little with the battery life, but THE LAG is the big problems here. I have never seen anything like that on a iPhone and i use it since model 6.

sovanreach96 wrote: "My phone when recording is lag"

sovanreach96 ~ What model of iPhone is it?...

Settings > General > About > Model Name

And what version of iOS is it running?...

Settings > General > About > iOS Version

õ¿õ¬

this platform won't resolve anything it seems like a venting out platform. no one form apple read this

tell them what you really think and your issues on this link. I did it and sent a feedback to them about how terrible the iPhone is. The more the merrier till some one takes notice

Product Feedback - Apple

i have a Apple 13(bought 2 years ago)

86% battery health…

the new ios26 update is killing me.

texting: glitches, laggy.

safari: does it work today? No, not without freeze, laggy and delays in response. Several seconds!!

camera from locked screen: ive conplained so much. First open, black screen. And I see the green light go on. Nothing. SO!! I have to lock the screen again. Click to ”wake upp” and press the camera button again and now I can take a picture. This has been since the launch of ios26.

do you have devs working? That know how to troubleshoot? Because it doesn’t seen like you do.