10-30% faster is “massive”? Ruby standard is 5-30 times slower than all other popular language implementations, I'd expect at least a 100% increase to be considered “massive.” I'd call this just “a speed boost.” Anyway, keep it up.
"Compared to JRuby on Java 6, JRuby on Java 7 without invokedynamic is around 25% faster, and JRuby with invokedynamic is nearly 3 times faster."