A few months back I changed over to a new dedicated server and even a more powerful one. But for some reason when you log into Admin on 3.3.2 installs and click on admin dashboard or plugins its slow. It takes a few seconds to respond.
Everything else in the admin is fast accept when you click on Dashboard or plugins.
On a newer install I have with 3.51 site this does not seem to be the case. I will eventually upgrade the other sites to see if it has something to do with older version. But I don't think so. I suspect something not configured right on server or the installs themselves.
The front end of the sites either old version or new WP seem fast.
Open for ideas or how to possibly troubleshoot.