Retriving data from Goodreads

I am using the Goodreads plugin, which downloads metadata and covers. I'm interested above all the value of rating, which discharges but rounds the value. For example if the rating is 2.65, shown as 3. And it linked to the rating field (stars), and of course, show 3 stars.

It possible to linked the rating to another field, by example a custom column? I interesting retrieve the average data from Goodreads for each one of the books I have.

Regards from Lima, Perú
Blessings