This JVM has no JIT, so OpenJDK and Graal will rather more than inch past it. It's not even a given that it will start up faster, since i don't believe it has been optimised nearly as hard.
Well, you'd probably get pretty good perf with graalvm truffle, but certainly the building blocks of golang shouldn't be that problematic to implement in java given that the go language model is more straight-forward IMHO. I wouldn't assume it'd beat pure golang compilation but who knows.
