As I said in the parent, in the case of Scala.js, I believe we lose more performance because of the loss of static types than we would if we lost the JIT. Perf

As I said in the parent, in the case of Scala.js, I believe we lose more performance because of the loss of static types than we would if we lost the JIT. Performance measurements in Scala Native, which has no JIT and is still quite young (so not very optimized yet), suggest than we can easily be within 2x of the JVM for Scala code, even without JIT.