I use both VSC And IntelliJ. Searching symbols/usages/implementations in large projects is far faster in IntelliJ in my experience, not to mention it's much more accurate too but that's probably due to the language (Java/Kotlin in IntelliJ, Go/JS in VSC). It's really annoying when I have to wait seconds to find implementations of a Go interface in VSC as I am used to IntelliJ's instantaneous searches. I think you mean VSC is faster to start up, and perhaps to type? It's certainly not faster overall.