On our website we use the large image variant for our blog posts. (Perfect for desktops) It is scaled accordingly to the device size. But is there also a possibility to display the small image variant for our blog posts on mobile devices? So we are not loading a large image with the 1200 x 726 px dimensions on mobile devices? So the pagespeed will increase.
Or do we have to this hardcoded with adding two images (1 small, 1 large) and with css display none.