[Andrenid]

> the actual editing feels very slow - painting something takes almost a second to update with the brush being very jumpy, reminding me using ZSoft's PhotoFinish on Windows 3.1 on my 4MB 386:-P.

It's completely and utterly indistinguishable from a native app on my PC (Firefox 57.0.4 (64-bit) on Windows 10). First thing I noticed was how smooth and flawless it was, even when I expand the canvas and go crazy with every single tool to make a big mess, it didn't slow down once.

[pjmlp]

Other than using 10x more resources than the original version.

[tenken]

computers have 1000x more capacity and throughput than the original 486's.

So a 10x bump in resource you say?! -- Hmmm not too shabby for such a faithful clone!

[tim333]

On my Macbook Air, with Chrome and High Sierra it managed to crash Chrome impressively and force quit and hitting restart failed to do much. I actually had to hit the power button which is kind of unusual on a Macbook.