We have listed a few simple but important tips for those who say how can I speed up my iPhone device is very slow. If you apply them, you will see that your phone is more comfortable and lighter. If the problem on your phone is not a software problem, it will speed up when you follow the methods below.
Delete the old ones, empty the phone. Clean things like old photos, old apps, old messages, and browser preload. This will ease the big load on your phone's shoulders. Turn off automatic updating and automatic downloading. These features cause the phone to slow down because it runs in the background without your knowledge. While the automatic update upgrades the applications you have installed on the phone to the latest version without asking you, the automatic download feature synchronizes your Apple devices. If these features are not necessary for you, turn them off. Terminate applications running in the background. If there is an application running in the background by pressing the Home button, delete all of them. This will speed up your phone incredibly. However, in places where there is no wi-fi, turn off the wi-fi feature. Because the phone will always look for connections and these processes will cause some slowness.
Your phone keeps some things in its cache constantly for fast movement. As this situation accumulates a lot after a long time, the phone starts to suffer. For this reason, turn your phone off and on at regular intervals. If your phone is uninstalling, install the latest version of iOS. This is always good. But, as you know, new versions of iOS are not compatible with older phones. For example, it is known that the currently used iOS 8 is not very good with iPhone 4S. But installing iOS 8 on iPhone 5 will make your phone better.

What we are talking about here is not such a big problem to slow down the phone alone. But when all of them come together, your phone slows down significantly. Then if you repeat these processes from time to time, you will always keep your phone light.