Nah, I'm running a cheap N5000 (1.10 GHz) with 4 GB of RAM at home and VScode runs well. At the end of the day, it's the extensions that might slow the editor down as they greatly vary in quality.
With only some Typescript/LESS/Node/Linting/Live Reload extensions, VSCode is sitting at 70 Mo right now. I think Microsoft did a great job with it. My machine can barely run Android Studio or Webstorm on the other hand, unless I turn off code inspection.