Cleaning up this design

Hi all,

I was hoping I could get some advice about this design: https://gcdreports.com ... I want it to be clean and simple, a straight pitch landing page. I have some structural issues on the mobile version but my question is mostly about sizing/spacing.

Are the fonts too big? The headers? Is the amount of white space ok? I don't want it to feel cluttered but it's a new product that needs a fair amount of text to explain. I can't just say "Selling widgets!" and expect...

Cleaning up this design WordPress ...