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It does, but the main speedup comes from using WebGL instead of Canvas2D. Sadly, Canvas2D is still as slow as it ever was and I really wonder why.

Years back I wrote a standalone Canvas2D implementation[1] that outperforms browsers by a lot. Sure, it's missing some features (e.g. text shadows), but I can't think of any reason for browser implementations needing to be _that_ slow.

[1] https://github.com/phoboslab/Ejecta

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For things missing/hard in WebGL, is it performant enough to rely on the browser compositor to add a layer of text, or a layer of svg, over the WebGL? I have some zig/wasm stuff working on canvas2D, but rendering things to bitmaps and adding them to canvas2d seems awfully slow, especially for animated svg.

Ah man, I'm still looking for a general canvas drop in replacement that would render using webgl or webgpu if supported. Closest I've found so far is pixi.js, but the rendering api is vastly different and documentation spotty, so it would take some doing to port things over. Plus no antialiasing it seems.

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