7 hours would normally be a little slow (not hugely), but taking into account the things you mentioned, especially the macros and setups I'd say it's about normal

Try and keep the gear on both updated as best you can, check out quest rewards for their level and do those chains, run instances (might mean pugs) if you can, or just get greens "...of the eagle" from the AH. The mage might benefit more from "...of the owl" gear though for regen, but the lock could use the stamina/int from "...of the eagle"

If you're short on cash for em, take mining/skinning on the mage, and herbs on the lock and just sell everything, saving cloth for tailoring on both of them once you hit 70ish, and keep first aid up to date on both to help with downtime