Some questions you need to ask yourself that may impact the best way to do things.
How fast are slides going to be navigated? How “big” are the slides data-wise. How many slides are there?
If there are many, large slides it would probably be in your best interest to lazy load some of the later content.
If there are few, small slides the opposite might be true.
solved How would I load different slides on a page depending on which link the user clicks? [closed]