Low level random dungeons

Is it possible to change the way random dungeon finder works? I tried to tank as a paladin, and what a joke it is compared to my warrior! What bothers me is that I queue at level 18, and my party has relic gear. Please limit what dungeons certain levels get into. I also found this highly annoying playing as high level. Level 42 and get satasha. There is hardly any experience rewarded. Please implement a medium level dungeon finder. All I have ever gotten is satasha or copper in the low level finder. Please find a fix as this is annoying and boring.