Blurry text on mobile devices

My website is UKonnected.com and it’s not optimised for mobile devices as I don’t want it to be. However when browsing the site on my iphone 4s the text looks blurry and unclear unlike other websites and even other text in the site such as the packages pricing boxes. The font in the packages pricing boxes is clear and sharp and readable but the rest of the font near it and elsewhere is blurry and you must zoom in to make it clear.

Fixes? Thanks!