Thank you for the reply.
However I am not on about CSS but breakpoints within the builder. Say for example I have a section in Cornerstone with an image in it and set those breakpoints for desktop only so that the section is not visible etc on smaller screens, and then I create another section with an image in it with breakpoints that shows on mobile only, do all of the elements and code related to both of the sections and elements still load in the background no matter whether it is being displayed or not?
I am a graphic designer and I have a (well two, but I am only going to use one as an example) large retina image on my homepage which is 267.3 KiB in size which is totally fine for desktop as my page speed rankings are rated as A in GTMetrix and 96% on Google’s Pagespeed insights. However on Google’s Pagespeed insights for mobile I am on amber with a low 60% result and I am just trying to work out what is the best way for me to go forward with this as the images on my homepage are a large part of this issue.
Thanks!