Pfft. You don't need a dps meter. Just fake it. It's really easy to do.
Step 1: Join a group.
Step 2: Claim you can do over 30k dps.
Step 3: Rage incoherently at random group member.
Step 4: Drop random insult and leave group.
Step 5: Repeat.
"He who fights with monsters should look to it that he himself does not become a monster...when you gaze long into the abyss the abyss also gazes into you..."
Under keybind settings there is optional things to bind, These allow you to post dps to chat, view a detailed dps window, or even post your healing done to chat if desired...