Disable Mobile Version?

I really like the theme and have now built out a site on it. However it seems that it is not rendering well on mobile devices (probably due to my configuration, long titles for example which are running off the screen).

I’d like to just disable the mobile version and have the regular large screen web version display on mobile devices (so the same version on all devices). Is it possible to do this, and if so can you advise on how I configure this?

Thanks!
Brad