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> I assume that means it is rendering an entirely new image each frame... which is a tad wild.

What's wild about that? That's exactly what it's doing and what most uses of canvas/WebGL do.

It's wild if it's running at 400 fps because nobody has a screen that refreshes at 400Hz. Every frame rendered past the screen refresh rate is wasted compute. Easily solved by limiting the frame rate.

It's not running at 400 fps, the UI has the current global listener count next to a button that says "fps". The fps is only shown once you click that button. Weird design, I know.

360hz screens have been available for about 6 years now and you can get one for $200-300 now. ~500hz monitors have been widely available for ~3 years now, and in the last year we've had companies launching monitors with 720hz and soon 1000hz refresh rates (1000hz is needed to avoid persistence blur due to sample and hold display tech https://blurbusters.com/blur-busters-law-amazing-journey-to-...).

Annoyingly, on Firefox this is locked to 60fps on my 120hz display.

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