I cannot take this project seriously. Dope art, though.
The funny thing, is that it is a website, web applications can be built for developers, the scrolling doesn't lag on my device, the spinner doesn't bother me, and it completely respects my navigation controls. I think you have a "you" problem, and enjoy projecting it at anything that doesn't fit into your mental model of how the world "should be". Go solve that, and you can come back and be a productive participant in these conversations.
On several of my devices that are plenty fast enough for pretty much anything else, the scrolling is still pretty laggy.
Looking at CPU usage I see that having this page open, eats an unnecessary amount (>70%) of CPU for what appears to be a static page, so there's definitely something not quite right there.
Odd that you responded to me saying this, as I made no claims about my experience being universal, I was quite obviously just speaking for myself as an exception to their universal claims. Go read the parent comment again, you still have time to edit yours and point it in the right direction.