Why it is running so slow? There could be a few reasons below,
Unclear App Cache. Enable So many Widgets. Hevvy load of internal storage. Unknown virus. Havvy Loaded apps. And many others reasons.
To Solve This Problem, Follow the step.
Open your device's Settings app . Tap Apps & notifications. Tap See all apps the app Storage. Tap Clear data or Clear cache. (If you don't see "Clear data," tap Manage space.)
