How to Fix Performance Issue on iOS 16

Are you having performance issues on iOS 16? You might experience it after installing the latest iOS update. Read on to learn how to fix it.

Recently, Apple made the final iOS 16 build available to the public. The most recent update includes many front-facing features, including improved Messages with new design and personal customization options.

However, having issues with new operating systems is common to any device. Numerous performance-related problems are becoming apparent. Apple hasn’t addressed every bug from the beta build, although most issues or bugs are common among iOS users.

Many users complained of UI lag, freezes, lockups, and erratically rebooting devices. These are very typical, especially on older iPhone models. But even the recent models, like the iPhone 13 series, can experience performance issues on iOS 16.

There are various reasons why these issues are persistent. A few particular performance issues occasionally become quite challenging for several users to manage. Most of the time, it might be related to the hardware or the installed iOS version. 

After updating to iOS 16, if you are having performance-related problems with your iPhone, there are several fixes you can try. Follow the simple troubleshooting methods below to learn about fixing the performance issues on iOS 16.

Check Storage Space

If you’ve had it for a while, your iPhone may have a lot of unnecessary data taking up space on its internal storage. Your iPhone might run faster if you delete unnecessary files. It could improve your device’s performance since there would be sufficient space for temporary data when using apps.

To do so,

First, navigate to Settings > General > iPhone Storage.

Now, you will see the summary of your storage. You can manually delete unnecessary files or follow Apple’s recommendations based on utilizing your iPhone’s storage.

Enable then Disable Airplane Mode

Sometimes your iPhone will have connectivity issues when connecting to a network or mobile data. It is recommended to enable then disable Airplane Mode to clear out any unfinished process regarding any network connections.

Additionally, this process refreshes any connection glitches that may sometimes occur, especially on a new iOS update.

After updating the iPhone’s software, Bluetooth or NFC connectivity problems are also frequently experienced. Therefore, switching on and off Airplane Mode can be helpful. This trick was beneficial to a few affected users.

Here’s how to do it:

First, open the Settings app and tap “Airplane Mode”.

Then, tap the Toggle button to enable Airplane mode. Wait for a couple of seconds before disabling it.

Verify if that process helped resolve performance issues on iOS 16.

Disable Background App Refresh to Fix Performance Issues on iOS 16

With the help of Background App Refresh, apps can get new content from the internet even when you’re not using them. In contrast, we assert that data is used when you open an app. Simply disable Background App Refresh to increase the efficiency and performance of your device.

To do so,

First, navigate to Settings > General > Background App Refresh

Now, select the “Off option” to disable it.

disable background app refresh to fix Performance Issues on iOS 16

Once done, verify if the performance issues on iOS 16 persist.

Reset All Settings on iOS 16 to Fix Performance Issues

The process lets you reset your iPhone’s settings to their original state, making it feel like a brand-new device. It will fix the flawed settings causing the performance issues on iOS 16.

Note: All customized settings, including sound, network, and other configurations, are reset to their default values. It won’t delete personal data and information if you reset your iPhone’s settings. 

Here’s how to reset all settings:

First,  navigate to Settings > General > Transfer or Reset iPhone.

Now, select “Reset” and then tap “Reset Settings”.

reset all settings iphone

Finally, wait for the iPhone to reset its settings to default. It will take a few minutes then verify if the performance issues on iOS 16 persist.

Restore iPhone to Factory Settings

Users often reset their iPhones when encountering serious software issues, such as problems connecting to networks or app crashes. It should resolve these issues, and the iPhone’s performance will improve after resetting to its factory settings.

Here’s how to do it:

First, head over to Settings > General > Transfer or Reset iPhone.

Next, select the “Erase All Content and Settings option” and follow the on-screen instructions.

reset to factory settings

Fix Performance Issues by Downgrading from iOS 16 to iOS 15

You can try rolling back to an earlier version of iOS if you can’t solve your issue and don’t want to wait for Apple’s upcoming iOS 16 update. Until Apple makes the iOS 16 version more stable, it is advised to stick with iOS 15’s stable release. 

The likelihood is high that iOS 16 is brand-new to the public market and will take some time to receive additional bug fixes. Many affected iOS 16 users followed suit and resolved the problem.

Related: How to Remove iOS 16 Beta


Given how many new features iOS 16 offers, it’s a significant update. These methods should give you complete control over your iPhone’s operation. Adhere to them to resolve performance issues on iOS 16 following the installation of iOS 16.

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