Smoother mobile scaling for product page

Hello,

Let me start by saying my only coding experience is in CSS.

1) I was hoping to be able to get the main product page (https://zxndesignco.com/product/cobalt-black-black/) to scale better on mobile devices. As you will see it is way to large in landscape view. If you look at (https://zxndesignco.com/product/cobalt) you will see how the images scale 1-1 to a mobile device. It would be nice to have the main product page on a mobile device look how it is on a desktop.

2) How can I get rid of related products on the main product page ( https://zxndesignco.com/product/cobalt-black-black/ )

Any advice would be great.

Thanks