you can adjust paddings / margins and Responsive font size for each screen size without affecting other screen sizes:
https://support.appdrag.com/doc/Adjust-margins-and-paddings-for-mobile

Another thing you can do is create a copy of a section that will be visible only on mobile, and hide the general one on mobile: https://support.appdrag.com/doc/Show-and-Hide-elements-for-some-devices

This will let you set different content for mobile & desktop