I have been making a platform game using event driven controls on the enemies with the platform movement set. Every enemy I add to the game will slightly reduce the fps regardless of if they're on the screen.
I remember in other programs (I think Corel Click and Create) I could set it to only load the sprites behaviours when they were on the screen. Is there any way of simulating something similar on Construct 2. It isn't a problem with PC and Mac but for iOS is really gets unplayable after a couple of dozen enemies have been put on the scene.