If you made the decision to move your WordPress install from shared hosting to a shiny new VPS you should consider optimizing Apache by making some tweaks to your httpd.conf file. Apache is a fast, reliable, and flexible server but is heavy on resources by default. If you are running a small VPS, and using it just for WordPress, you can make some small tweaks to your configuration and get some significant performance gains.
If you’re looking for some tips on SSL performance with your WordPress site be sure to check out our guide on using SPDY and SSL. If you need a WordPress theme, be sure to check out our WordPress templates or read about how to find the best WordPress themes.