Get the latest tech news
How to clear your Android phone cache (and why it greatly improved performance)
You could see a big boost in your phone or tablet's speed and overall responsiveness once it's done.
If you want to try this update but are hesitant because you've noticed your Android phone or tablet already feels too sluggish, clearing app and browser caches can give it a fresh boost and free up some storage space. Elyse Betters Picaro / ZDNET On newer versions of Chrome for Android, tapping the menu button displays an option called Clear Browsing Data. Elyse Betters Picaro / ZDNET Cache stores temporary files -- like images, scripts, and other resources -- to speed up apps and websites.
Or read this on ZDNet