If your website isn't doing well with mobile visitors, it might be time to look into solutions.
According to a recent Blog post by Google's Yoshikiyo Kato and Pierre Far, sites with mobile experience issues won't rank as highly in the future in Google's mobile or smartphone search results.
From Kato and Far:
To improve the search experience for smartphone users and address their pain points, we plan to roll out several ranking changes in the near future that address sites that are misconfigured for smartphone users.The two followed the news up by explaining two common mobile configuration mistakes and then suggested that these future search ranking changes will help to improve the search experience of smartphones using Google.
When a page listed in search redirects all users to the same single mobile page instead or the mobile-optimized version it is called a "faulty" redirect. Here is an example diagram from Google below: