Not sure if this is the right sub-forum to post in but here goes: Im wondering if there are any resource hungry and just things I don't use like iCloud and etc I can turn off. Im an IT student, studying software development and I strictly do only school stuff on my mac. For security and performance reasons are there things I can do? I did some digging around on google and found threads that were from 2008 and 2009 with no useful information. I mean with every update they add things from iOS to macOS which seems like a lot of unnecessary clutter I'm never going to use anyway and they must be using some resources and associated services, right?