Right, the runtime speed of Kotlin is very good. But the build times got much slower. An average java build with Gradle takes ~30 seconds on my pretty old lapto

Right, the runtime speed of Kotlin is very good. But the build times got much slower. An average java build with Gradle takes ~30 seconds on my pretty old laptop, but with Kotlin it is about 1 minute. Daemon and parallel are enabled in global gradle properties. I think running Kotlin compiler as a daemon would help, but I don't see an easy way to do that with Gradle.