1. Too many programs are running in the background. Please stop running unnecessary software programs in the background, and often clean up the background to improve the running speed of the mobile phone.
2. The mobile phone is out of memory. Please delete and uninstall unnecessary files regularly; Thereby improve that running speed of the mobile phone.
3. If you are running third-party software, it is recommended to uninstall or try to install other versions.
If all the above operations fail, please see more solutions:
(1) Check whether the version of the mobile phone is updated and upgrade to the latest version.
(2) If the third-party software or its own function runs slowly, please back up the data in the mobile phone and restore the mobile phone to the factory settings.
(3) If all the above methods fail, please bring the purchase invoice, maintenance card and machine to the service center, and the professional after-sales engineer will help you deal with it.