I will try to describe the problem in a few words.
The photos in the MEDIA are uploaded with very good quality, in high resolution. Despite this, they appear slightly out of focus on the page, are not very sharp
BUT IF I enter the product, the photo is sharp and of very good quality. So the problem is not with a Photos
So I think the problem is with compression on the site , where is the list of products Photos
No, that’s not the problem you describe. We are talking not about a shop. In shop is OK! ( I have uncropped checked).
ATTENTION!
The problem is on the product grid on the home page, NOT IN SHOP. In shop is fine.
It is slightly out of focus on the product grid on homepage, but when it comes into the product, the photos are super sharp.