Conclusion

From site design, to site promotion, marketing, to search
engine optimization, everything you do to improve your site
will also improve your Adsense CTR. While it seems like a
lot of work, if you build a professional site, do the research
on how to bring traffic to it, and keep it a place visitors want
to return to, AdSense will blend right in and be successful
almost immediately.

Increasing your CTR comes during, in between, and after
building your site and its targeted traffic. It’s going to be a
lot experimentation and tracking. And it’s going to be
increased revenue for your site. You’re on the right path
now.
Good luck!