How to Fix iOS 16 Performance Issues

As we move away from the latest iOS 16 update, we are hearing about various performance issues plaguing iPhone users.

While many iPhone users are having a great experience with Apple’s latest software, others are complaining about bugs and performance issues.

The current list of iOS 16 performance issues includes UI lag, freezes, crashes, and random reboots. These are extremely common, especially on aging iPhone models. Still, newer models like the iPhone 14 series are not immune to performance issues.

Performance issues can be difficult to fix. While you can fix some problems on your own, for others, Apple may need to fix it with a new software update. In some cases, you may need to contact Apple support or bring your iPhone to an Apple Store.

If you can’t wait for the new version of iOS 16 and/or don’t have time to contact Apple support, we have some fixes that can help you fix the iOS 16 performance issues you’re encountering. on your phone.

Restart your phone

If you start noticing UI lag or other performance issues after installing the latest version of iOS 16, try restarting your iPhone. Turn off the power, leave it off for a minute and turn it back on. This has solved many problems for us in the past.

Update Your iPhone

Apple occasionally sends new iOS 16 software to your iPhone. Point updates (xxx) usually focus on fixing bugs, while milestone upgrades (xx) usually offer a mix of new enhancements.

The company may not cite performance fixes in an iOS 16 update’s changelog, but new software always has the potential to help (or in some cases hurt) your iPhone’s overall performance.

For more information on the latest version of iOS 16, check out our guide.

Update Your Apps

If you haven’t already, be sure to update your apps to the latest version.

App developers are currently rolling out iOS 16 support updates, which can help stabilize the performance of iOS 16 on your iPhone.

Before installing the latest version of an app, you’ll want to go to the App Store and read reviews from other iOS 16 users. If the reviews are mostly good, download the latest version

How to Clean Up Your iPhone’s Storage

If you’ve been using your iPhone for a while, you may have a ton of clutter taking up internal storage. Deleting unnecessary files can help speed up your iPhone. This is especially true if you’re running out of storage space.

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To get started, you’ll want to check and see how much free space you have on your iPhone. Here’s how to do this:

Apple makes some recommendations based on your iPhone’s storage usage, but you can go through each section to manually delete files you no longer need.

Stop Using Background App Refresh

iOS’s Background App Refresh feature refreshes apps in the background to show you the latest data when you open them. It also makes your phone run in the background. So if you don’t need it, you may want to turn the feature off. Here’s how to do this:

If you want to keep it open for some apps, leave it open and then scroll down in your app list and manually turn it off for the apps you don’t use.

reset all settings

If you’re still not getting the performance you want from your iPhone, try resetting your settings. Here’s how to do this:

This will restore your iPhone’s settings to factory defaults.


If you can’t find a solution to your problem and/or don’t want to wait for Apple’s next iOS 16 update, you can try reverting to the previous version of iOS. Your downgrade options change over time and sometimes downgrades are not possible.

For more information on iOS downgrade, take a look at our walkthrough.


If you can’t find a solution to your problem and want to avoid taking your iPhone to a store, you may want to restore your device. This should only be used as a last resort.

You can do this through Finder, iTunes, or iCloud.

Moyens Staff
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