You don't get "native performance" (as in the speed that a native application would run) even with JIT. You still need to implement the semantics of the virtual

You don't get "native performance" (as in the speed that a native application would run) even with JIT. You still need to implement the semantics of the virtual machine, and generate the native code, add safety guardrails for memory safety, etc. The Hotspot JVM is a world class implementation that does all of that well and still loses to C/C++ outside specialized benchmarks.