Hello admin, i found this post on 17 spot in google's search results.
I'm sure that your low rankings are caused by high bounce rate.
This is very important ranking factor. One of the biggest reason for high bounce rate is 
due to visitors hitting the back button. The higher your bounce rate the further down the search results your posts and pages will end up, so having reasonably low bounce rate is 
important for increasing your rankings naturally.
There is very useful wordpress plugin which can help you.
Just search in google for:
Seyiny's Bounce Plugin