I don't know if this is relevant to performance or not, but Ashley posted this recently on his twitter:
[quote:3202i0vo]Sounds like there is finally consensus about canvas rendering from workers with OffscreenCanvas: https://wiki.whatwg.org/wiki/OffscreenCanvas
Would need a runtime rewrite to use that though...
[It would mean that the] entire runtime could run in a worker, unaffected by any main thread jank. Realistically this is a post-C3 project.
I'm guessing that means our games would utilize more cores? I don't remember how many are being used, but considering 48.8% of Steam users have 2 cores and 48% have 3+ cores, that might be good.