The default parser is Boilerpipe (https://boilerpipe-web.appspot.com/), which I agree isn't very good. For a much better experience, go to the add-on options and select the Mercury parser and follow the directions to get a Mercury API key. Mercury keeps all of the formatting, paragraph breaks, etc., making for a much better reading experience, however we can't make it the default choice due to the need for individual API keys.
