I have yet to find a website discussing about how module scripts affect performance. I know that it's mainly for organization but i've seen people saying that the less scripts you write, the better your game will run. I'm a bit skeptical about that because even if using module scripts require less writing, it will still run the same code throughout multiple scripts so i don't see how that differs from just writing 10 scripts that each have 100 lines that are almost the same.