To expand on this, the vscode editor can do a lot more than what is specified in LSP. You can have custom functions in your language server that is not in spec

To expand on this, the vscode editor can do a lot more than what is specified in LSP. You can have custom functions in your language server that is not in spec and have your editor specific plugin call them. I imagine there is a lot of this for typescript. But I'm not sure if this can explain the speed difference..