Earlier quoted context omitted.
Is Rust as blazing fast as Electron is slow?
Electron is not necessarily slow - see Visual Studio Code; it's certainly not as reactive as Sublime Text, but it's fast/reactive enough.
People rag on Electron with the same shallowness as they praise Rust. I bet you can make slow things in Rust. It's all a soup of trade-offs, resource management and hype.