How to upload photos in bootstrap 4 ajax slider in wordpress?

Question

JavaScript

I am making a website in wordpress. I am using bootstrap 4 slider.
There is a slider. It has a lot of photos. The site takes a week to load.

Tell me how to download from the N-th photo only if necessary?

Answer 1

I suggest. Look towards the loadmore. We output the first 4 in a loop, calculate the current element n in js, load the next 2 elements in ajax, for example. At the same time, we use this combination only for the content itself, but leave the number of slides for recalculation full