I tried CPM ads from adsdaq since last 2 months and exactly on the 60th day I started getting good revenue from them finally. I was about to get rid of them but since they have started yiekding decent revenue, shall I keep them or still go ahead with installing CPS ads? - (The adsense ads were put on hold by me for time being to check CPM performance).
Congratulation ! I would suggest not to change anything but get more traffic instead to increase your performance. Make your effort pay off with viral marketing giveaway ebook with your links , write article and publish it in article directories and blog networks to see huge surge of traffic to get more revenue.