Portfolio, perfect for computer, but on mobile, how to configure ?

Hello, I love my presentation gallery grid on the computer (mosaic style). Very good display quality for images and colors. But when I switch to mobile, it's the same configuration, so the images are too small / seen far away. You would need to be able to display full format images and scroll them to see them correctly on mobile.

For exemple : The Ultrabook portfolio offers the same “mosaic” configuration and the mobile version is in full. But I preferred to use Adobe Portfolio because it is more complete, and I would like to use it as a real website + domain name

thanks!

(sry for my poor english)