I really don't remember the exact numbers, anymore. A few times slower. The slowdown certainly is significant enough for number-crunching code, but end-users wo

I really don't remember the exact numbers, anymore. A few times slower. The slowdown certainly is significant enough for number-crunching code, but end-users wouldn't notice the difference for simple calculations. I haven't yet played with per-module compilation flags, but it would be possible to compile performance-critical modules with a higher optimization level. Such a solution might require a little wrapper to convert between the data types, depending on the chosen compilation options, but it's the same when talking to raw JS code.