Converting Wordpress Import from HTML

I’m currently testing out Ghost Pro, and have successfully imported my blog posts over from a Wordpress install using the plugin.

My only issue is that all of the post content is imported as HTML cards, rather than in Ghosts’ native editor format.

This means there is a lot of extraneous code in the posts, and I’ll need to go through and edit each one, especially those where images don’t look quite right.

Is there a way to deal with this easily, can I process the JSON file in some way before import, to remove unnecessary HTML?