Bolt is powered by Expose Framework and loads by the in-build LESS functionality very fast. Themexpert provide it in 6 different pre-definded styles, which makes it usable for nature-, sport-, travel-, car-, cityscape- and event websites. Two bonus pages for 404 error and offline mode are included. You can create also a Joomla one page website with it. The Scrollspy support make this possible. Bolt is native to Joomla 2.5 and Joomla 3.x. The download is commercial.
Crosstec's CacheControl gives you the full control about the cache of your Joomla content and extensions. This lightweight Joomla plugin allows you to turn off the cache time on every content of your website. You just define Crosstec's given rules for the cache of a certain page and the cache of this site will be turn off. CacheControl is free and works with Joomla 2.5 and Joomla 3.x.