I think this article is misleading, you can use any framework to make slow bloated software. A great thing about Electron and similar projects is that you get one codebase which is useable on many different platforms. An Electron application can easily be a website and PWA, then the user can choose what they prefer.

A good example fast / "performant" software which uses Electron is Obsidian.

Yes Electron isn't perfect, but I think it's a good choice for many situations. Same for Tauri, CapacitorJS, etc. Regardless of which is chosen, there should be an effort to make software performant and non-bloated.