[Jetrel]

Yeah, it's worth pointing out that people are blaming electron for what's wrong with Slack. When, perhaps, it's just Slack itself that sucks?

I use Discord all the time, which is one hell of an oranges-to-oranges comparison (with Slack), and not only does it have none of the perf problems of Slack, it's also faster and snappier than any NATIVE chat app I've used.

There's a lot that can be done wrong in any framework; as recently as windows xp, there were a few atrocious algorithmic-complexity gaffes in basic file viewing (directories with more than a few hundred files would slow to a crawl in the GUI, taking multiple minutes to display). It wasn't the fault of the framework it was written in; it's just that someone at MS had written something that had to scan the directory in a hurry, and ended up accidentally writing an exponential-time algorithm. Slack likely has a few deep-seated goofs in their architecture that are just too big to extract and fix.

[marcosdumay]

If nearly every single professionally written and quality vetted code created on JS is so slow that it takes several seconds to do things that software used to do instantly 60 years ago, is this really not a problem with the language?

Yes, JS can be much faster than every single piece of it you will find people using. It's just that every developer that has some main focus different from execution performance is holding it wrong.