Html can take ages for its self to read, recently whilst looking through code of something for the site, someone had accompanied it with an optional js files, they called cache, which it did indeed. Same Html, yet now placed into a JavaScript file.

What this appears to do, is reduce the time taken to render the exact same content of Html for processing by the Browsers, to be displayed.

So within Xoops this took on another approach that can also speed up Smarty page calling.