I have a Ubuntu 64-bit 10.04 LTS box running Virtualmin and Apache2, fully updated. It's an ESX VM with 2GB RAM.
There are currently two sites (one CMS and one Wordpress 3) running on the server and both have the same issue. The request takes about 5s and then the page loads.
This behaving seems to be the case with all page loads.
I'm looking for advice on where to start troubleshooting.