19 Fix iPhone Slow after iOS 15.5, iOS 16 update Speed Up way 2022

Last Updated on May 18, 2022

The iDevices on which the people using it become unstable. Because it is causing a lot of problems like iPhone freezing after iOS 15.5 update, iPhone running slow after iOS update, and much more. Not only the old iPhones or iPad’s are slowed down but also the newest iPhone 13 (Pro Max) Mini, iPhone 12 Pro Max, 11 (Pro Max), iPhone XS Max, XS, XR, X, and iPhone 7, 6S are freezing after the iOS update.

we are happy to help you, submit this Form, if your solution is not covered in this article.

This issue spoils the experience of using the iPhone and makes people annoying. If in case you also belong to that annoyed iPhone user then don’t worry I can help you to troubleshoot the iPhone running slow after the iOS update.

iPhone slower after update iOS 15: Get Fix to Reduce Lag

1: That’s Normal! πŸ›€

Apple’s new iOS update comes with too many hidden features for Photos, Media files and for installed apps, and more. So, your iPhone’s data converting to a new iOS system after your IOS up-gradation process is completed. So, that’s normal in 90% of cases. and This problem Gets affect old iPhone models in most cases.

So leave alone your iPhone for at least 30 minutes and Keep patient until the whole setup is completely automatic. Don’t try the Camera, Or Gaming app for testing or intentionally because that needs more hardware use.

During this period you might get noticed that your iPhone consumes more battery because of your iPhone’s Backgroud process.

2: Way to Free up iPhone Storage

I know that your iPhone has no free space because of apps size, Large Size of Photos, and Videos. But still, you have to manage your iPhone’s free space.

But how? There are some Built-in Record Analysis tools and Options for Checking and Quickly free up space on iPhone. Follow the below steps,

Open Settings app on iPhone > General > iPhone Storage > Enable iCloud or Offload Unused app [Automaticaly Offload unused apps when your Low on Storage. Your Documents and Data will be saved].

Another option is to Review all the apps like photos and Delete Photos from the “Review Personal Videos” option in last > Swiple to left for Delete Video from iPhone completely.

3: Your iPhone is heated and Doing Slow Process

During the Software installation, your iPhone gets heated. So, several users reported iPhone lagging after update iOS 15 Update or iOS 14 Update.

The solution is, Remove the Back cover and Don’t use your Phone. Put your phone on the lock screen, Press Sleep Button, and Leave it alone for 10 to 15 Minutes.

Still, you have an issue with your iPhone freezing and hanging after a long wait on normal days.

4: Update your Apps on Device

If apps aren’t responding properly then it may possible that they are not compatible with the new iOS.

You have updated your iOS Software update, But Some apps are not updated and outdated, running on the older versions. Update all the apps that are optimized for your latest iOS version.

The solution is, Update all the app over a good internet connection. follow the below steps,

  • Open App Store on iPhone > Tap on Profile at top right corner of the screen > Scroll the Upcoming Automatic Updates and Tap on Update all or Manually Update all app one by one.

5: Turn off Background App Refresh

Background App Refresh creates a burden on the device and uses most of the memory and RAM of the iPhone. So it is advisable to turn off this feature when you face any difficulty while using the iPhone.

  • Step #1: Launch β€œSettings”.
  • Step #2: Open β€œGeneral” and turn β€œBackground App Refresh”. toggle off (white means off and green means active).

6: Enable Reduce Motion

Toggle on Reduce Motion will stop all the parallax of apps and animations which will result in improved speed of the iPhone.

  1. Go to the Settings app on iPhone > Accessibility.
  2. Next, Find and Tap on Motion.
  3. Now, Enable the toggle for Reduce Motion.
  4. That’s it.

iOS 12 or earlier

  • Step #1: Go to β€œSettings” and open β€œGeneral”.
  • Step #2: Click on β€œAccessibility”.
  • Step #3: Tap β€œReduce Motion” to enable it.

sometimes due to disabled animation on your phone, you might face the phone screen lagging. that’s why you should toggle on Reduce motion. This logic may also satisfy your slow phone issues.

7: Enable Reduce Transparency

Now we will turn off the reduced transparency which will reduce the background see-through effects of the device.

iOS 15 & Later

  • Step #1: Go to β€œSettings” and tap β€œAccessibility”.
  • Step #2: There open β€œDsplay & Text Size”.
  • Step #3: Next, Enable β€œIncrease  Contrast” and tap on β€œReduce Transparency”. And Disable Reduce Transparency.

iOS 14 & Earlier:-

  • Step #1: Go to β€œSettings” and tap β€œGeneral”.
  • Step #2: There open β€œAccessibility”.
  • Step #3: Next, β€œIncrease  Contrast” and tap on β€œReduce Transparency”. And Enable Reduce Transparency.

8: Hard Reboot Your iOS Device [Important]

Touch screen lagging after iOS 15 update or iOS 14 Update [Sub Version] Usually, a small problem can be fixed by rebooting the iPhone. Only you have to use your fingers intelligently.

For iPhone 12, 11(Pro Max), XS Max/XS/XR/X/iPhone 8/iPhone 8 Plus users

  • Step #1: Press and quickly release the Volume up button.
  • Step #2: now Press and quickly release the Volume down button.
  • Step #3: Now, press and hold the side button until the Apple logo arrives on the Screen after the black screen.

For iPad/iPhone 6S or earlier 

  • Step 1: Press and hold the Home button and Power button same time until you see the Apple logo on the screen.

For iPhone 7/iPhone 7 Plus users

  • Step 1: Press and hold the Volume Down button and power button simultaneously for a minimum of 10 seconds.

9: Delete Unused Apps [You can Enable offload feature]

The apps which you don’t use delete them and free up some space on your iPhone. To get the detail of which app is using how much storage follows the steps. you can also take the help of enabling offload Apps.

  • Step 1: In the β€œSettings”, tap β€œGeneral”.
  • Step 2: Next β€œStorage and iCloud Usage” and then β€œManage Storage”.

10. Turn off Low Power Mode

If you are experiencing a lagging iPhone screen, because of some animation and Power consuming optimization turned on for your iPhone. Try with Disable Low Power mode on iPhone.

The solution is, Open the Settings app on iPhone > Scroll to Battery > Disable Low Power mode toggle.

11. Reset All Settings

Put your all iPhone settings to the system default. Do it using the Reset all settings option on iPhone settings. This option will not erase any data from your iPhone like Contacts, Messages, Mail, and more.

This option will reset the home screen layout, Reset the control center, Bluetooth settings, WiFi settings, that’s all users can re-organize from the settings app.

The solution is,

  • iOS 15:- Go to the settings app > General > Scroll to “Transfer or Reset iPhone” > Reset > Reset Network settings or Do Reset all settings.
  • iOS 14 & Earlier:- Open the settings app > General > Reset > Enter Passcode > Reset All Settings.

12. Keep Practicing of Close Open Apps

you are not closing apps that you opened and used, then force close it. and clear up your Phone memory once a day.

force-close-background-app-on-iphone-no-home-button-iphone-x-or-later
force-close-background-app-on-iphone-no-home-button-iphone-x-or-later
  • No Home button iPhone: Unlock iPhone, and Swipe up a finger to top for launch app switcher screen. and Force closes the app, by swipe up each app preview.
  • Home button iPhone: Double Press on Home button to see the app switcher screen and Force close app by swipe up.

13. Is your Charging Slow?

Check your Charging cable, and Plug directly on the wall plug with apple’s original Charing cable and Adapter.

Clean up the charging port using a soft brush [Creafully please] or Blow your mouth air.

14. is your Safari Slow?

if you have an issue with slow safari after iOS update then follow the below quick fix,

  1. Clear all past history from iPhone Safari Settings. Open Settings app on iPhone > Scroll to Safari > Clear History and Website Data. This will remove history, cookies, and Other browsing data. and cleared from devices signed in to your iCloud account.clear-safari-history-on-iphone
  2. Enable JavaScript on Safari Browser, Again scroll to Advanced Option on the Safari settings > Enable JavaScript toggle to green. Some websites will become unresponsive because of developer demand on JavaScript load.enable-javascript-on-safari-web

15. Enable Dark Mode

System Dark mode Feature on the latest iOS/iPadOS On iPhone/iPad allows you to experience less strain on your Eyes mostly a night time. We can enable Dark mode from iPhone/iPad settings app and Control center also. So System-Wide Dark mode makes your Screen Dark apart from text, so most of the part of the screen will remain black that saving power.

Let’s check this tutorial on how to Enable Dark Mode on iPhone and iPad [Manually or Auromatically]. Settings > Display & Brightness > Dark mode.

16. Turn off Unwanted Notification

If you are getting a frequent notification on your iPhone lock screen or Home screen, Then you have to customize it, That means turn off Notification for the Selected app only that is unwanted about Sell, Reminder, and Chat App. My Personally Blacklisted App that sends a frequent notification on iPhone [Mail app (Enable Notification from Selected mail Account only), Reddit(Only Enable Important mail account), Twitter, Snapchat, Instagram, WhatApp Group, and more].

  1. Go to the Settings app on iPhone > Notifications.
  2. Now, Scroll to the List of Apps and Tap on the App name to disable or Turn off notification completely.
  3. Disable the toggle “Allow Notifications“.
  4. That’s it.

17. Stop Auto-Update Apps

As I said, it consumes memory and processor which ultimately results in the slow down of the iPhone. When storage gets low it may affect the performance of the device.

  • Step #1: Go to β€œSettings”.
  • Step #2: Scroll down and find β€œApps and iTunes Stores”.
  • Step #3: There turn off β€œAuto-Update Apps”.

18. Wipe Your iPhone (Backup > Erase > Restore)

This process will take some hours depending on the Data saved on your iPhone. So First Backup your iPhone data to Finder/iTunes on Mac or PC. Now Erase the Device and Restore Latest Backup to Copy all data back to your iPhone.

  1. Go to the Settings app on the iPhone.
  2. Next, Scroll to General > Reset.
  3. Now, Tap on Erase All Content & Settings. [This option will wipe your iPhone completely like a new].
  4. That’s it. Now Restore Backup data to iPhone using the Restore iPhone process.

19. Contact Apple Support – Hardware issue

In such a cause hardware issues create a problem for a long time. so I recommend diagnosing with the apple support center or Booking an appointment at Apple Genius bar.

Check your iPhone is under warranty, if yes then get free repair and replacement.

Do you have any other way that I haven’t put on this list to fix the iPhone running Slow after the iOS update?

2 Comments
  1. the hard reboot worked on my 9.7 ipad

  2. I’ve changed my setting to pretty much what you’ve suggested. We’ll see how thing work.

    My real bug-a-boo it when my iPhone is raised for me to do something, more often than not, iTunes comes up saying it is playing or not playing a certain song in the background. I then go in and double tap my HOME button locate the iTunes open screen and swipe it up and closed. The cycle repeats itself MOST frequently. How do I STOP iTunes from doing this.

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