Slow performance and lag after iOS 26 update on iPhone

I've been having issues with lag ever since the update came out, to the point where some of my apps are taking almost 10 minutes to actually open correctly. No Apple Intelligence, no VPN profile, battery health isn't the issue either because I never had this issue before updating

i installed ios 26 on my iphone 16. my phone has had chronic problems lagging since… the same thing happened to my daughters phone. i have run constant tests and diagnostics to improve performance and the issue persists without a valid reason for the performance. my phone was fine before the update the rest of my family who did not update do not have problems. i have found no reasonable solutions to this problem only mediocre responses and am very unhappy with your product.

I have waited a week after update now and it's terrible. Many new serious bugs have appeared. The keyboard is utterly broken. Safari is almost unusable with Glass off (with Reduce Transparency). Often apps are unresponsive. Scrolling freezes. Etc

iPhone 13pro. Had 77 battery left. Had Apple replace battery. Reset all my settings as they suggested that too. Turned off all Siri suggestions. Reduced transparency and toggled it 100 times to make sure. Don’t use lower power mode. Have plenty of storage left. I’ll give it a few days.

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I upgraded iPhone 15 pro to iOS 26.1 ten days ago and safari is just DESTROYED. bookmarks and web navigates so slowly, lags exceed 6 to 10 seconds between click and action. I have gigabit fiber and eero 7 500 m WiFi speed so it’s definitely the operating system. Apple please fix ios26.1’s interminable lags.

2manmoshpit wrote:

I upgraded iPhone 15 pro to iOS 26.1 ten days ago and safari is just DESTROYED. bookmarks and web navigates so slowly, lags exceed 6 to 10 seconds between click and action. I have gigabit fiber and eero 7 500 m WiFi speed so it’s definitely the operating system. Apple please fix ios26.1’s interminable lags.

You are not addressing Apple here. This is a user-to-user forum. Apple is not reading your post.

You can let Apple know your thoughts here:

Product Feedback - Apple

Tried resetting the iPhone and loading no backup make it a little better but the lag was still there.

using 16 pro max 1TB and feeling as if it’s an iPhone 6🤦

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I’m noticing significant lag when connected to my WiFi. As soon as I turn it off. I am able to perform normal functions across my apps.

My phone lag after ios 26 update specifically in battery saver mode and low bandwidth network.Some notifications doesn’t work if locked phone for hours I m using iPhone 15 pro max 1 tb

Since you bring it up, what is your battery health percentage? What 5 or 6 apps are consuming your battery power and CPU cycles that of course could be the cause of the lag.

Thetruelesbian wrote: "...Apple needs to act soon."

Be sure to tell them — as we're all just users in these user-to-user communities.

iPhone Feedback

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It’s sounds like you’re having issues beyond just an iOS upgrade. Have you spoken to Apple Support ?

Saurabhmishra004 wrote: "...Please fix this in the next update."

Saurabhmishra004 ~ Apple is unlikely to see your request in these user-to-user communities. Use this form:

iPhone Feedback

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Same the battery is holding not more than 3 hours and the phone is lagging extremely. Non of the suggested reasons are or were present before the update. The phone has plenty of storage, battery health is at 87%, no jail break, no drops or incorrect handling.

Same, brand new iphone 13 pro max , battery at 100% life, no jailbreak, no temp changes or drops. Super good condition, before updating to newest IOS it was so fast and good. Now it got laggy and phone is starting to heat even and extremely laggy. Things load slow. iPhone storage 512 half full.