How Kotlin is faster than Java?

Kotlin vs C++: Performance It is safe to say that if you are looking for raw speed, there is no better option than C++ right now .

In the most common configuration — partial builds with incremental compilation enabled — Kotlin compiles as fast or slightly faster than Java .21 Şub 2019

Java is a faster programming language than Kotlin . As one test revealed that Java has ~13% faster compilation speeds (with Gradle) than Kotlin (14.2 seconds vs 16.6 seconds) on average. However, the difference in speed is only for full builds.