I've just tested your site on Google's Mobile-Friendly Test and it gets the green result
Can you specify which elements are having the small font and too close together issue?
We understand this concern regarding test results but the theme has no issue with mobile-friendly tests because it is responsive in nature. The recommendation you get from the test is more of a page optimization/performance stuff that is outside of the support that we can offer. You might want to hire someone that is knowledgeable about site optimization.
You can also try (if you have not yet) some of the site optimization guide we provided here.
Thank you for understanding,