I was wondering if there's a builtin / easy manner to determine key stat's on a function. Say, the number of computations/time/etc for a given function to run. Suppose I had two functions that performed the same output - and I'd like to use the more optimized route.

UPDATE: Please forgive, I didn't explain this as I should have. My goal is to be able to determine how functions are working, in order to see if I could/need to think about optimization. Perhaps using an ArrayFormula Vs a SUMPRODUCT etc.

I tend to build out large sheets, and they get bogged down. One 'trick' that I've been doing is to spread my work over many individual sheets, and then reference as needed. However, I'd love to be able to better understand and see how my choices affect key performance indicators - perhaps (and this is a stretch goal I realize) something to better understand number of callbacks to tighten this up a bit as well.