There is a bit of overload [0] on labsdb1003 right now; that is normal considering there is only 1 server left of the original 3. However, it is now a good opportunity to start using the new servers [1] so your queries can be 10x faster!
Another tip is, if you have regularly executed queries (for example, in a cron), to setup some locking mechanism so one makes sure the same query is not running multiple times on at the same time (e.g. if for some reasons they become slower than usual).
Please ask questions if you have them about how to do any of these.