Your CPC is low, maybe you are in low pay niche. Try change the ads placement to see any improvement on the CTR
im also facing the same prob i dont know why there are less page impression with less clicks with less earning what is google up to :#
First of all, your site is so red, it blind my eye. Let say if I'm a visitor, and visiting your site, I won't stay longer than 2 minutes browsing. **Second of all, try to use Text ads, not all the images ads, that will help you a little. and try to reduce your text/links/background colors. Good luck.
@xAlexKimx, thanx for your feedback. I'll definitely follow your kind advice as all I want is quality content....