Google has recently confirmed that how many internal people have doubted for years – sites which are not optimized for multiple users, their search reduces rankings. Google supports your ranking, how useful a page is for a user-registered query, as well as the usefulness of the site – for example, can a user complete the action they want?
Your page may be fully relevant to their search, but if visitors do not reach content easily on many devices, then less likely to be positive on your Website Design and the search results may be reduced. If your company decreases in another or third page entry, you will lose a lot of traffic because people naturally prefer the link from the first page.