Editing page templates (Cover) for AMP compatibility

Hi,

I am setting up an AMP website (https://zygomaticimplants.org/) using the twentytwenty theme. So far, everything is going very well, at the exception of the following issue:
?Inmobile, using the cover page template (see front page), the first auto-propagated block is too high and the title ends up being below the fold.

I took a look at theme editing, first in template parts and can’t find where to edit this or to simply remove the screen height requirement for it to fit the title height and that’s it.

My apologies if this is a very simple question. I am trying to edit the cover template to remove the auto sizing of the container (with the page title there and background picture) or to correct the slight oversizing I am observing.

Thank you in advance,

The page I need help with: [log in to see the link]