Dear Friends, You people can improve your page CTR, try to changing titles and adding more relevant content to get better focused to ads. Block low paying advertiser through filters.
Also, cater for a less technical audience, since they tend to click more on ads. Personally I settle for a CTR of 5%, I don't try to get more, but I always keep on optimizing until I reach a 5% CTR.
You can increase page CTR by placing high value AdSense keywords based on your chosen theme into the relevant pages of your website. These keywords focus the ads to the content. The more specific the ads to the material on your site the better your overall CTR. But high value keywords not only helps increase CTR they also help you get better paying Google ads.