I don't think any other IDE has "better" functionality. A Jetbrains IDE packs a ton of features (I have tried several alternatives but none come close). The only language where VSCode even seriously competes is Typescript (Rider is much better at C#). I used them originally on 4GB laptop and now on 16GB macbook, and I never found it to be too slow. (the indexing part can be slow, but they mitigated it somewhat by allowing you to download pre built indexes).

I have never spent 5 minutes on any index operation in almost any Jetbrains IDE. You might want to check your VMOptions and see if there is anything in there causing it to be extra slow.