My new iPhone 15 is laggy and slow

I just got my new iphone 15 and it is so laggy and slow. Some apps wont open. Sometimes it wont check for updates. There is over half the storage space available and Ive updated and deleted and reloaded apps. It does this both on my wifi, my 5G wifi, and cellular data. My old iphone 8+ zips right along it isnt my network.



[Re-Titled by Moderator]

Original Title: New Iphone 15 is slower than old 8+

iPhone 8 Plus, iOS 16

Posted on Oct 2, 2025 4:18 AM

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Question marked as Top-ranking reply

Posted on Oct 2, 2025 4:36 AM

New iPhones are doing a lot of work in the background. This can slow down the device considerably. The background activities generally complete in 3 or 4 days. A forced restart can help too. Follow the directions in the Apple Support article I shared below.


Force restart iPhone - Apple Support


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2 replies

Oct 4, 2025 12:28 AM in response to Jeff Donald

Im having to restart it like 4-5 times a day because it wont even open any webpage. Again every task

is something my 8+ does super fast, this phone is utter garbage. Its not worth what I paid for it, and I hate using it its so useless and dragging.


and Ive had this phone for weeks now, it should well be done with any set up. I want my money back for this hunk of useless plastic.

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My new iPhone 15 is laggy and slow

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