I have used both unbearably slow IDEs like Visual Studio, Android Studio, Atmel Studio and very fast and lightweight editors like Notepad++ and Sublime Text. I

I have used both unbearably slow IDEs like Visual Studio, Android Studio, Atmel Studio and very fast and lightweight editors like Notepad++ and Sublime Text. I don't have any issue with the speed of VS-Code on my machine and it feels the same as Sublime Text used to.