I see our support team updated your ticket. They sent you an email or you can view their response here https://panel.dreamhost.com/index.cgi?tree=support.his& . We are sorry for the poor server performance you experienced. The issue was due to a high load on your webserver "Elbert". Our admins have been working on the server, and now have the load back down to normal levels.
If you have any other questions please do not hesitate to ask us here, or you can reply to the email we sent to have our support team look into it further.