Hmm not sure if I’m missing something here , on the demo on desktop the images change as you slide up the page, looks great, on iPad because you can’t scroll in the same way the images just stay where they are, hope that makes sense, but I guess that s how it’s supposed to be on iOS that you don’t really see the parallax effect
I loaded the Demo page on an Android tablet and it’s displayed like an usual page, contrasting with desktop loading, where only text is moving up and down.