A LOT of info without killing RAM

I have a Highend Blog that presents A LOT of info.

It’s https://great-news.org

It’s a long presentation with 58 Presentation slides, and I think it looks really nice and tells the story that I want it to tell.

The problem is that it doesn’t load right on PCs/Laptops/Phones that don’t have a lot of system resources/RAM.

Apparently the theme is loading all 58 slides into memory at once??? (I think that’s what’s going on.)

Is there a way I can get Highend to load the info as you get closer to the slides in question? Not load all of them at once?

Maybe I can break this up into multiple pages with left and right icons to move horizonally through the story?

Anybody have any ideas for me to change this so the site still looks great but doesn’t load the whole thing at once?

I hope I’m making sense.

THANK YOU!