Paladin don't really need a high dps rate due to there stats . If you want to dps and put out a decent dps output whilst tanking try playing as warrior , with the new dps stance for warrior you can put out high dps that can match a monk or dragoon whilst still holding aggro easily . It takes a lil bit of practice to get your rotation sorted and being able to swap stances to have use of your cool downs but I find it a better tanking job due to the difficulty of it

Or just try some crafted gear with some determination melds it may help