iMac very slow (Retina 5K, 27-inch, 2017)
My iMax is running very slow at startup. It takes from between 5-10 minutes to get to the login screen. Once logged in, it takes abothe 5-10 minutes befor I can use any programs. I read about booting from an external hard drive as well as replacing the internal one. Would this help? Is there another problem?
I ran a EtreCheck report. Results included.