On the topic of general site performance since the switch, it seems Dream Host is having a bit of an issue. They are working to resolve it but unfortunately it's just something that will have to be lived with until they get it back under control. For status updates, or in general any other time the site is being sluggish or acting strange, you can check
http://www.dreamhoststatus.com/, they're pretty good about posting updates.
While server issues always suck, at least the site is with a host now that actually lets its users know what is going on.