I have just updated the first of my sites from 3.9 to 3.9.1
As soon as the upgrade completed the site has started running extremely slow. I have rebooted the server, disabled plugins and pretty much everything else. It does not solve the issue.
Of course i did forget the golden rule to back up first as i thought i would not need to as never had an issue previously. This update to 3.9.1 though is certainly causing a big issue.
Any ideas what would be causing this please.
Running the inspired theme