6 Clean Your Browser Cache
Cleaning your browser cache periodically is a useful way to keep your iOS web browser running smoothly. Sure, websites might take a bit longer to load, but you’ll be able to clear out data from sites you no longer visit and speed up your browser.
If you’re using Safari, go to Settings > Safari. Scroll down and tap Clear History and Website Data.
If you’re using Chrome, tap the three-dot icon in the top-right. Tap the Settings option, then tap Privacy. Finally, tap on the Clear Browsing Data option at the bottom.