When I open the website, the CPU usage is still relatively high.

[Aaron009]

surroundings: mac os 10.15 chrome latest version stable cpu occupies about 40%

Personally feel worse than Flash experience

[felixblaschke]

Thank you for the feedback and your observations are right. This demo isn't targeted as usual web application. It's more some kind of tech-demo squeezing a lot of power from your device (like a computer game). It's constantly rendering high-demand graphics (even if it might not look to you). More recent hardware (like the M1 macbook) will handle it just fine, but older devices struggle with it.