Fix Mobile Usability Issues

Hi I have been getting a message from Google webmaster tools which is worrying me!

Google systems have tested 174 pages from your site and found that 49% of them have critical mobile usability errors. The errors on these 85 pages severely affect how mobile users are able to experience your website. These pages will not be seen as mobile-friendly by Google Search, and will therefore be displayed and ranked appropriately for smartphone users.

Touch Elements To Close 85 pages
Content Not Sized To Viewport 83 pages

Please could you kindly advise as I do not wish to move templates as I really love your work
just so you know I am fully up to date with Word Press and the Minicorp wp

Best regards Marcus