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Is it just me? This website is super laggy on my PC (which can run modern games just fine). Hardly hits 50 fps when scrolling. How slow can one get and still claim to be fast?

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Firefox 91 on Windows. 2011 CPU. Radeon RX 570 GPU.

I have a low spec PC, and it is running just fine.

Maybe some extension slows down your Firefox? I don't use an anti-ads and anti-spam extension, I deal with that via hosts file.

Not just you, I have a pretty beefy desktop and it's noticeably laggy when scrolling for me too.

EDIT: ah - butter smooth in edge (and presumably chrome too), but laggy in firefox.

Further update - it turns out I'd turned off Hardware Acceleration in FF to avoid issues that Windows has when you have GPU accelerated content on two separate monitors with different refresh rates.

It's really bad with Hardware Accel turned off, but it's still a bit laggier with it on compared to chrome/edge.

Yeah, it's not really optimized for that. The floating labels over the code examples are offset in 3d space (for a subtle parallax effect while scrolling), so when HW acceleration is off it may end up repainting the page on every scroll. The effect is probably not worth the tradeoffs :)

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