Improve Neopixel Peformance?

any references I could take a look at to wrap my head around this concept?

In the code above? Rather than printing for every frame, you just increment a counter. Then every second you print the value of that counter. If 30 frames were rendered in that second then it should print 30.

If you're asking about the JS execution speed then http://www.espruino.com/Performance might help though