Debugger is gone from VSC?

[karei]

Julia debugging is extremely slow

Well, you can select which libraries shall be compiled. If you are not debugging the CSV library, just compile it: Debugging · Julia in VS Code You can also try https://plugins.jetbrains.com/plugin/29356-flexible-julia, which is a commercial offering, so you need to pay for it unless you work at a university. On the other hand, if you have a bug report or feature request they address that very fast.

Julia debugging is extremely slow

I would recommend just using Infiltrator.jl and putting an @infiltrate everwhere you want to inspect variables, and remove all of them when you are done.