How to Fix Bad iOS 14 Performance

As we move away from the latest iOS 14 release, we’re hearing about various performance issues affecting iPhone users.

While a lot of feedback on the latest iOS 14 update is great, we’re having a good experience on most of our devices, seeing complaints about bugs and performance issues.

The current list includes UI lag, freezes, crashes, and random reboots. These are extremely common, especially on older iPhone models. But newer iPhones like the iPhone 12 series are not immune to them.

Unfortunately, performance issues like these can be difficult to fix. While you can fix these on your own, some may require a conversation with customer service.

If you can’t wait and/or don’t have time to contact Apple support, we have some fixes that can help alleviate the performance issues you’re seeing on your device.

Restart your iPhone

If you start noticing UI lag or other performance issues on your iPhone, try restarting it. Turn it off, leave it off for a minute and turn it back on.

Update Your iPhone

Apple will periodically release new iOS software. Point updates (xxx) usually focus on fixing bugs, while milestone upgrades (xx) usually offer a host of features and fixes.

While Apple doesn’t disclose performance fixes in an update’s changelog, new software always has the potential to help (or hurt) your iPhone’s overall performance.

For more information on the latest version of iOS 14, check out our guide. And to learn more about the latest version of iOS 15, Apple’s latest operating system, follow this walkthrough.

Update Your Apps

If you haven’t already, try updating your apps to the latest version.

App developers are currently releasing support updates and they can help stabilize iOS 14’s performance on your device.

Before installing the latest version, be sure to go to the App Store and read reviews from other iOS 14 users. If the reviews are mostly good, you’ll want to download the latest version.

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Reset Your Settings

If you’re still not getting the performance you want, try resetting your iPhone’s settings. Here’s how to do this in iOS 14:

This will restore your iPhone’s settings to factory defaults, so make sure you have your Wi-Fi passwords handy. You will need to re-enter them.

Clean Up Your Storage

If you’ve been using your iPhone for several years, chances are very high that you’re taking up too much space on its internal storage. Deleting this clutter can help speed up your iPhone.

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

If you’re approaching the threshold, you’ll want to go back to General and navigate to where it says iPhone Storage. Here you will get a detailed summary of your data.

Apple will make some recommendations based on your storage usage, but you can go through each section to manually delete files you don’t need.

Stop Automatic Downloads

iOS’ auto-update feature can be useful, but a constant stream of updates keeps your iPhone running in the background.

If you’re having trouble manually updating your apps in the App Store, try disabling Automatic Downloads on your iPhone and see if performance improves slightly.

To do this, you will go to Settings. From there, tap on iTunes & App Store. From here you will want to turn off Updates located in the Automatic Downloads section. You may also want to disable other options.

Disable Widgets

iOS 14 brought some big time upgrades to Widgets. However, if you are not using Widgets on your iPhone, try disabling some or all of them to see if it helps.

To do this, you’ll want to swipe right while on your iPhone’s home screen. After that you have two options. You can do:

  1. Press hard on a single Widget
  2. Scroll all the way to the bottom of the screen and select Edit. This will cause them to start fidgeting.

If you press hard on a Widget, a small menu will pop up. To remove a widget, you’ll want to tap Remove Widget at the top.

If you selected Edit at the bottom, you can tap the minus sign on a wiggling Widget to remove it. You can also scroll down and select Customize. This allows you to quickly add or remove Widgets.

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We recommend disabling the Widgets you are not using. Remember, you can always turn it back on if you don’t see an increase in performance.

Clear Browser Cookies and Data

Clearing your browser’s cookies and data frees up memory, which can have a positive impact on your phone’s performance.

If you’re using Apple’s Safari browser, go to the Settings app, tap Safari and navigate to where it says Clear History and Website Data. Tap on it.

Tapping this will remove your browsing history, cookies and other data from Safari. The history will also be cleared from all devices signed into your iCloud account. If that’s okay, tap Clear History and Data again.

If you’re using Google Chrome, you’ll want to enter the app and tap the three horizontal circles in the lower right corner. If you haven’t updated to Chrome’s new design, they are in the upper right corner.

Once there, tap on Settings, tap on Privacy and now tap on Clear Browsing Data. You can now choose the ones you want to delete. If you’re noticing heavy lag, you might want to clean everything up.

Stop Using Background Refresh

iOS 14’s Background App Refresh refreshes apps in the background to show you the latest data when you open them. It also keeps your phone running in the background, so you might want to turn it off if you don’t need it.

Here’s how to disable it:

If you want it to stay open for some apps, leave it open and then go to your app list and manually turn it off for apps you don’t use.


If you had a good experience with the previous iOS version, you can try downgrading your iPhone. If you don’t know how to downgrade, take a look at our walkthrough. It will guide you through the steps you need to take.


If you can’t find a solution to your problem and you want to avoid taking your phone to a shop, 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.

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