So I was curious to know why and I tried to clone the project to debug it, and could not figure out how to setup the dependencies properly.
You should add a section how to contribute/develop.
I'm curious on why Make runs twice faster to you, since in most cases the difference should be negligible (i.e. the Task overhead should be insignificant compared to the time it takes to run the command).
Maybe you're running really lightweight, like `cp`? Otherwise I'd consider it a bug. Could you open an issue, then?