For better speed, more stability, or avoids from bugs, you have to update your phone with the latest firmware
Unwanted Apps can slow down your mobile performance, and reduce charging capacity, so you have to unisntalled those apps, who are unneccessory.
You need to update the apps with the latest version. to avoid the bugs , security.
You can boost mobile performance for using a high speed memory card
Images should be optimized before uploading them by reducing their size, removing unnecessary metadata and applying lossy compression.
It contains metadata about the files on your site. When the browser downloads a page, it will download all of the files listed in the cache manifest as well.
Browser caching saves the copy of the website you previously viewed and displays it instead of loading it from its original source.
Web Workers are a great way to utilize your phone's processor, but not all browsers support web workers.
Subresource Integrity (SRI) is a security feature that helps protect against attackers who tamper with or replace the resources you’re delivering.