My project takes almost 4 minutes to go into PlayMode. Same goes for going out of PlayMode, but I haven't gotten to that yet. Edit: Same Call, same amount of time on exiting PlayMode. Deep Profiling the process of entering PlayMode, I was able to get rid of a few logic loops that might've hindered my scripts. However, I DO need some tips on dealing with the elephant in the room. The Prefab.MergePrefab call at start. The weird thing is that the time allocated for the call in question is not the sum of its childrens' times. There is a LOT of functionality in this one call that is completely hidden from the user behind its name. Does anybody know what is happening here and how to reduce it?