I do most of my work in java (https://github.com/mP1 https://github.com/mP1)... so i am familiar with it. Java is a high level language, and the native optimisa

I do most of my work in java (https://github.com/mP1 https://github.com/mP1)... so i am familiar with it. Java is a high level language, and the native optimisations are done by the JVM vendor which basically boils down to Oracle today. Some people might write some native code that is faster, but that is hardly the norm. There are many classes of programs that dont work particularly well if written in java, such as video editing or graphics because you know the rest.