Tips to fix slow iPhone/iPad after upgrading to iOS 9

After a huge number of iPhone users upgraded to iOS 9, some people experience slower speed on the iPhone or iPad. Older devices such as iPhone 4s and onwards, have been experiencing terrible performance in terms of speed after upgrading to iOS 9. There is a conspiracy theory that this was made to happen so that people would be bound to upgrade to the new iPhone. Sometimes it feels like we have conspiracy theories for everything.
However, soon after the upgrading began, the internet was taken by frenzy and there were people everywhere expressing their anger on the internet.
Conspiracy theory aside, this could be because you are trying to run new software in an old device. Some reaction must occur and that comes out in slow performance of device. The conspiracy theory seems unlikely because users can actually opt to or opt out of upgrading the device, all by their free will.
All iPhone fans would know that Apple keeps some features restricted to the newest iPhone and even if tech savvy people think those features would work on older devices, they usually do not work. Most old devices such as iPhone 4s and iPhone 5 are experiencing much worse performance. Most users claim the whole upgrading to iOS 9 has been nothing short of disaster.
Solving the problem is quite easy actually. You can try the following:
You can reset all the settings on your iPhone. No, your music, data and apps will be untouched from the reset. You will lose all the saved WiFi networks and passwords. Also, you might need to change some settings on the iPhone that you opted for prior to the reset. If you do not know how to reset the settings, then follow this path.
Settings -> General -> Reset -> Reset All Settings -> Enter Your Passcode. Let the phone restart after this.
If the first solution doesn’t work, then you need to take a more serious step. Reset your iPhone to factory settings. Yes, you will lose all the data stored on your phone so make sure you have back up. You could restore all the lost data from back up or sync it. Although you need to know that by restoring from back up, you are prone to bringing back some of the problems. This is a chance you will have to take if you want your iPhone to work well.
If you do not know how to reset to factory settings, then relax, we have got you covered. Click on the following buttons: Settings -> General -> Reset -> Reset All Settings and Content -> Enter a Passcode.
If you want a temporary solution, then Apple allows you to go back to iOS 8 for a couple of weeks. There are multiple tutorials available to guide you on how to downgrade to iOS 8.