Atom and Brackets use the big old bloated DOM, and not very well. At least in the case of Atom, it's used awfully, and plugins can block the main thread (and th

Atom and Brackets use the big old bloated DOM, and not very well. At least in the case of Atom, it's used awfully, and plugins can block the main thread (and they do with big-ish files). Anyway, the discussion is the use of JS. The language is fine but the UI "library" is not (a whole web rendering engine).