The front page of my site appears jumbled on mobile devices. Overlapping text on the slider and the menu does not scroll properly. 

The description of the Mentor theme says that it is optimized for mobile and that is why I bought it.

What do I need to do to implement make it look good on devices?

Also, I forgot to mention that the blog is not displaying the graphics for each post. How can I fix that?

Thank you very much!