Our Classified script support caching/minimizing javascript and css, and also caching websites html for almost instant loading after caching (SSD disk is suggested for better performance).
To enable this feature in application\config\cms_config.php add:
$config['litecache_enabled'] = TRUE; $config['jscsscache_enabled'] = TRUE;
Additional performance improvements can be done with browser caching, guide: https://gtmetrix.com/leverage-browser-caching.html
You can also enable gzip compresson on your server for better page speed:
http://stackoverflow.com/questions/3641197/how-to-specify-vary-accept-encoding-header-in-htaccess
For best performance, you can also use some dedicated server with built-in caching engine like a2hosting turbo accounts: