ü CLEAR YOUR CACHED DATA
This is more or less a temporary solution if your device’s slowness is caused by the unnecessary apps you installed. Cache data eats up system resources (takes up storage space on your device) while slowing down your device. You should clear this data from time to time or install a cache clearing app, like Clean Master that can possibly help you out.
ü FREE UP YOUR DEVICE STORAGE
Aside from uninstalling unnecessary apps, especially if the problem is caused by insufficient storage, you should also delete some files that are filling up your internal storage to speed up your device.
ü PINPOINT THE PROBLEM
It could be multiple apps, an app or the storage itself slowing down your device, it is important you try to identify what the problem is or might be, before you fix your device yourself or give it to a technician to help you fix it.
ü PERFORM A FACTORY DATA RESET
This function will wipe your device clean and leave the software the way it was when you first turned it on, so backup important files before you do this. Some Android devices come with a “Backup and Reset” option in the device’s settings, but make sure you backup important files before you do this.
ü UNINSTALL AND DISABLE UNNECESSARY APPS
For apps that you cannot delete you should disable as them. You can uninstall or disable apps through the app manager found in your device’s settings. Learn to close all apps you are no longer using. This helps to free up your RAM and improve your device’s performanc