Your iPhone may run slowly if it does not have adequate storage for the apps to run smoothly. It may also have many apps that are running at the same time. The apps use ram space, and when you run many apps at a time, the system slows down.
Moreover, you also have to check if your iPhone has a new or older version of iOS, as the iOS version can affect its performance. However, if you have upgraded your device to an operating system not meant for it, it may also lag, as the system will need a strong base.
Sometimes a simple restart can speed up the performance, as it clears the RAM that the apps were using. It also fixes any glitches and bugs, so your iPhone will run smoothly. But if you have tried restarting your device and it does not solve the problem, we have mentioned the six best methods that will solve the lagging problem in no time. Let’s check them out!
1. Clean Up Your iPhone Storage
Whenever you feel that your iPhone is not running smoothly, you have to check the storage and clean up any excess apps that are not in your use. You might have installed many games on your iPhone, which take up a lot of space.
iOS clears space on your device if you are running out of storage. However, you need to clean the storage on your own. Apple suggests that your iPhone must have at least 1 GB of free space if you want the best experience.
Turn on the storage cleaning recommendations
Here’s how you can turn on the storage-cleaning recommendations on your iPhone:
- Go to Settings and click on General.
Go to General - Select iPhone Storage.
Select iPhone Storage. - You will see recommendations on your device; read the descriptions, and turn them on.

Offload Unnecessary Apps
Your device sometimes also does not show the recommendation; if that’s the case or you want to free up some more space, you need to follow the below-mentioned steps.
- Go to Settings > General > iPhone Storage.
- Scroll down to see the app that is not in use.
Locate unimportant apps - You can choose to Offload the App, which will keep the app’s data and documents while freeing up the storage.
- You can also delete the app if it is not in use.
Delete the unimportant apps
Clean up unimportant photos and videos
After removing the apps, go to your photos and clean up all the photos and videos that are not important. You can also turn off any iOS feature that is not in your use, for instance, Siri, AirDrop, etc. You can also delete unimportant text messages.
Clean the safari cache
In addition, make sure to clear Safari’s cache. To do this, you need to:
- Go to Settings, scroll down, and click on Safari.
Click on Safari - Tap on Clear History and Website Data. It will clear all of the browser’s cache.
Tap on Clear History and Website Data
After doing all the steps mentioned above, restart your device once. It will speed up the process and make your phone run smoother.
2. Turn off Background Activities
Your iPhone may run slowly if there are a lot of apps running in the background, as all those apps will use disk and RAM space. Eventually, it will affect the performance. First of all, you need to ensure that there are not many apps open in the task manager.
For this, you have to tap on the home button (for phones having a home button, such as the iPhone 6) or swipe up from the bottom (for iPhones not having a home button, such as the iPhone X) and remove all the unused apps. Do this whenever you use your phone.
Furthermore, you have to close the Background App Refresh; here’s a step-by-step guide:
- Go to Settings and tap on General.
- Select Background App Refresh
Tap on Background App Refresh .
- Turn off the toggle.
Turn off the toggle - You may also select some important apps and turn off the unimportant ones.
Next, you need to reduce motion, which will also make the performance better.
- Go back to Settings and click on Accessibility.
Go to Accessibility - Next, tap on Motion.
Tap on Motion - Turn on the Reduce Motion toggle.
Turn on the Reduce Motion toggle
3. Turn off Low Power Mode
Low power mode in the iPhone is used when your device is running low on battery. It decreases the power usage on your iPhone, which eventually improves the battery timing. If your phone is in low-power mode, your battery icon will be yellow.
This mode also affects the performance of your device, as the system turns off certain features. Moreover, your device will also become sluggish because apps will take longer to open. Therefore, if your iPhone is charged, you can turn off this mode.
- Go to Settings, scroll down, and tap on Battery.
Select Battery - Turn off the toggle in front of Low Power Mode.
Turn off the toggle
4. Erase All Content and Settings
A hard reset can solve all the issues that are resulting in poorer iPhone performance. It will restore the phone to its original factory settings. Performing a hard reset on your device will bring your device to its brand-new condition with improved performance. It will erase all the content from your device; thus, ensure to back up your data on iCloud.
Moreover, you will be able to multitask on your device without lagging issues, and the apps on your device will open faster than before. Below is the step-by-step method to do a hard reset:
- Go to Settings and tap on General.
- Next, click on Transfer or Reset iPhone.
Tap on Transfer or Reset iPhone - Now tap on Erase All Content and Settings.
Tap on Erase All Content and Settings - Click on continue.
- Add the passcode that you use to unlock your device.
- Lastly, click on Erase iPhone and wait for it to erase.
5. DFU Factory Restore
A DFU factory restore is an advanced mode that is more effective than the previous method. It helps iPhones to get restored from any state. This mode works through iTunes, which restores the phone to its factory settings.
In addition, the DFU, or Device Firmware Update, makes changes to the software and firmware and also updates it to the latest software. Thus, solving all the software-related problems.
Performing a DFU restore will erase all the content from your device. Thus, if you are going to do it, you need to save all your data on iCloud or iTunes. Here is how to perform a DFU factory restore:
- Use a lightning cable to connect your iPhone to a computer.
- Press the volume up button and immediately release it.
- After this, do the same with the volume down button.
- Press and hold the side button, and do not release it until your phone shuts down.
Press and hold the side button until your phone shuts down - Continue holding the side button, and when the screen turns completely black, press and hold the volume down button for 5 to 7 seconds.
- Next, release the side button without releasing the volume down button. After a few seconds, your iPhone will show on the PC. The screen of your device has to be completely black; if you see anything on it, such as an Apple logo, it is not in DFU mode.
- You will see a pop-up notification on your PC; click on OK.
- Then click on Restore iPhone.
After this, your phone will be restored. Next, to exit the DFU factory mode, you need to do a force restart.
- Press and release the volume up button immediately.
- Press and release the volume down button immediately.
- Press the side button and hold it for a few seconds until the Apple logo appears on the screen.
- After this, release the button.
6. Turn On “Reduce Transparency”
Turning on the “Reduce Transparency” mode will not only help you fix your sluggish iPhone performance but also increase the battery timing. It changes the screen contrast while reducing the screen transparency and blurring some background on your device. It means that backgrounds, keyboards, etc., will be set to dark contrast. Eventually, it will increase legibility.
- Go to Settings, scroll down, and tap on Accessibility.
- Now click on Display & Text Size.
Tap on Display & Text Size. - Turn on the Reduce Transparency toggle.
Turn on the Reduce Transparency toggle - After doing this, restart your device and see if this method works.
If you have tried all the above methods and none of them work, you need to contact Apple Support and ask for a solution. You may also ask for a replacement if your device has a warranty. Also, check the battery health of your iPhone and if it is not sufficient, you need to replace it.