Tailwind compiling very slow (20s+)

The compile-time for webpacker seems extremely slow on a new project. I have simply git clone and done the set up of the project. I am using the latest version on Gitlab. The first load on booting the server is ok. It takes less than 4s. I am using foreman to handle the processes.

Simply adding a console.log in pack/application.js trigger a 22 second compiling time for wepback. 

EDIT: it looks like Tailwind is causing the slowdown. Any idea on a fix?