Performance issue on svelvet.io with Brave

[softgripper]

svelvet.io has terrible performance where the widget is in some browsers.

There are no console errors/warnings.

My specs are i7 12700k, 64gb DDR4, RTX 2080ti - all drivers up to date.

Problem exists for

• Windows 11 with Brave
• Ubuntu with Brave
• Ubuntu with Firefox - (not as bad, but the REPL has bad performance here too)

No problem with

• Windows 11 Edge
• Windows 11 Chrome

I made a video showing the behavior of the homepage vs the REPL. https://www.youtube.com/watch?v=IB_Kd1FU-H0

It might possibly be something to do with hardware acceleration settings in the browsers - but the fact that the REPL runs flawlessly is a little concerning.

[softgripper]

I did a little bit more investigation.

It's actually caused by this div on the homepage.

<div class="css-blurry-gradient svelte-1gegils"></div>

If I delete that from the DOM, the slow experience goes away (and improves scrolling significantly).

I can't see a visual difference, but my guess is the hardware acceleration is struggling with whatever implementation of blurring is occuring here.