Here, for example: https://www.quora.com/Is-LuaJIT-still-faster-than-JavaScript-V8/answer/Rochus-Keller?a https://www.quora.com/Is-LuaJIT-still-faster-than-Java

Here, for example: https://www.quora.com/Is-LuaJIT-still-faster-than-JavaScript-V8/answer/Rochus-Keller?a https://www.quora.com/Is-LuaJIT-still-faster-than-JavaScript... LuaJIT's speed is very impressive, but the optimizations it can use are limited by its desire to remain lightweight. It's understandable that JavaScript implementations, which don't have that restriction, can use different techniques and work out faster overall.