Problem with image size from database

Hello,
I’m new with WIX and a have a problem with image.
I create a site for a keychains collection and I have some display views from my database.
I use the Gallery Repeater to have a view with only the images. Doing this I have access to the image properties and there I find an option “Keep the original format”.
So when I see my Gallery, all the image have the same size (all item are 300px hight).

Another view came from a selection from the database. I pick an item an I want to see the details of the item and the image.
The problem is that the same image as before is bigger and can’t fit in the area.
It is the same image (300px hight) but I can’t find in this case the option “Keep the original format” or similar.

Have you an idea if it is possible or it is a missing option ?
So could you help me ?

Thanks in advance.

Regards.
Marc

PS : the adress of the site is https://marcguislain.wixsite.com/portecles