Lowest leads ratio in the world?

Can someone tell me how common and how bad this is?
Why is it happening and what to do to get more money out of it.

(http://i.snag.gy/3upG0.jpg)
The traffic is porn targeted, and i have seen lots of more leads in the past from the same kind of traffic.
Should I change the offer? To which one? Is it time to change affiliate platform?

THANKS

It's not bad, I grown adult twitter acc from 0 to 2000 followers, all the time i posted stuff from crakrevenue, getting tons of uniques, not a single lead.