As a user of VSCode, I use it in spite of it being based on Electron because there are no other good alternatives. It is noticeably very slow on many tasks, and has a large startup time. I recently had it basically become unusable when opening a 2MB yacc file and had to switch to Sublime Text to edit the file. I much prefer Sublime Text in terms of speed, but VSCode simply has more and better extensions for different programming languages making it better for day-to-day coding. If somebody were to make a performant text editor that has similar features to VSCode I would switch in a heartbeat.