To change startup programs on Mac, one of the easiest ways is to go to System Preferences > Users & Groups and add or remove items by pressing “+” or “-” respectively. After making the changes, restart the Mac to see the effects.
Alternatively, startup programs can be disabled from the Dock, deleted in Finder, or removed using MacKeeper.
MacKeeper can also be used to find and remove startup items.
Mac startup programs can slow down your Mac, so it's important to keep an eye on what's loading up with macOS and remove any startup apps you don't need. This article provides five ways to change what apps start up with your Mac, including disabling them in the part of the OS that manages user profiles, disabling them from the Dock, deleting them in Finder, and using MacKeeper to clean out junk files. Additionally, it explains what startup programs are and how to use MacKeeper to find and remove startup items.
How to Change Startup Programs on Mac
Is your Mac starting up slowly? A mess of startup and login items might be to blame. ... Instead of opening apps directly, launchd loads specially-formatted ...
How to remove startup items on your Mac