I Decompiled the White House's New App— The app has a cookie/paywall bypass injector, tracks your GPS every 4.5 minutes, and loads JavaScript from some guy's GitHub Pages.

https://lemmus.org/post/21165111

I can’t say anything about the content of this blog. It was horribly laggy to scroll on mobile device. And by horribly laggy, I mean like aunt’s 1986 vacation slide show on a projector while having dry cookies and tasteless off brand earl grey.

I’m sorry if it sounds rude but I had to bring this on out in the open. What even runs under the hood on that blog…

Not a performance problem. My guess is, they (poorly) emulate native scrolling via JS on mobile. Probably for some progress feature or something.
Unfortunately all of the code blocks are loaded after-the-fact with JS for some asinine reason (highlighting I’d understand… but why the actual text?), so disabling JS also disables all the code snippets on the page.
That’s why dynamic loading sucks.
Definitely a performance problem, no HW acceleration on PC produces the same insanely stuttery scroll.