[PlzSnow]

Agreed, and the sluggish problem can't be solved because the Atom team chose a developer stack which benefited them, and not one which benefited the actual users of the software.

There is a massive gap in the market for a native speed open-source SublimeText clone.

[brazzledazzle]

I don't know that the stack is the problem. Visual Studio Code seems quite fast.

And the your first statement seems to imply some kind of obligation where there is none. Open source is a public service not a public obligation.