Completely agree with you, and I wouldn't expect it to be faster than javac as it needs more semantic processing. (some pleople find it faster: https://medium.c

Completely agree with you, and I wouldn't expect it to be faster than javac as it needs more semantic processing. (some pleople find it faster: https://medium.com/keepsafe-engineering/kotlin-vs-java-compilation-speed-e6c174b39b5d#.pojv5uakx https://medium.com/keepsafe-engineering/kotlin-vs-java-compi... ) What I think it is slower right now are the tools. Sometimes IdeaJ stucks. I guess they will be improving the performance slowly as right now they are other things in the language more important to focus.