I would get rid of the affiliate banner, and add more ads from
Ero-Advertising (they are very good for this, the most profitable adult ad network), or
Exoclick.
The biggest mistake that you are making, is not having a mobile version of your website with ads from
Bitter Strawberry or
Sex Goes Mobile, or a mobile popunder code from
Plugrush.
Some other mobile brokers to consider, are
First Mobile Cash, and
VPS Mobile. They are not as popular as the previous too, but they may turn out more profitable on your tube, as they are more specialized.