Question about sprite behaviors & effects volume?

Sorry haven't tested this yet but maybe some one can point me in the right direction before I try. What I'm wondering is if behaviors & effects on sprites have an off screen effect on CPU, GPU & Memory? Example if I made a huge game map of a forest & all the trees had a tween behavior to rock back and fourth. Then all the tree leave sprites have a water effect and are pinned to the trees etc.

Is it worth making a "is on viewport" or "is overlapping" - a screen sprite to enable/disable the behaviors & effect animations? Would this even improve performance? In short is everything off screen working all the time? If I have 200+ sprite trees on a layout doing the described behaviors & effects is it just going to kill FPS if their are only lets say 20ish sprites on screen at a time?

Construct already doesn’t render objects that are not on the screen. And effects only are run for pixels on screen.

Great to know. Wish I could have said it in so few words!