So far, I don't see any problem.
But then, I came across this: https://www.scirra.com/tutorials/510/advanced-tips-and-tricks-that-construct2-offers , which is published on 31st, March 2013. My concern is from this statement:
While, for my case, I do not invoke function in every tick. I have to admit I exploit function calls to a very great extent. In fact, my whole event sheet rather looks more like programming code.