Here's an easy trick to replace the built-in Mootools library that comes in Joomla 1.5 with a compressed copy from Google AJAX Libraries API:
There are 2 speed benefits by following this approach:
- We load a compressed copy of Mootools, so from around 73kb it drops to 18kb!
- We load Mootools from Google, thus our browser can simultaneously (in parallel) download Mootools along with the rest of our site's content.
It's a simple & easy trick we use on all our web projects, big or small. ;)