Do you really need so many implicits? I actually learned that they will do more harm than good. I try to avoid them, where ever I can. And actually the playframework doesn't take so long to compile, to make sbt publishLocal after a clean takes no longer than 5 minutes (travis needs 40-50 minutes not sure why) for me, which is actually really fast. I mean running every tests every time takes a while, but I think that people should start incremential compilation / test if they want a fast workflow.