If you want to see a big improvement in speed, cleaning Mac hard drive is one of the most efficient solutions especially if your Mac Mini hard drive is almost full. Optimizing startup items is often the easiest way to help speed up your Mac Mini! 3. If the answer is no, select those and click the minus “-” button to disable them. On your desktop, click the Apple icon to the top left > System Preferences > Users & Groups > Login Items, check the apps that are enabled there.Īsk yourself, do you really need these apps/services to automatically run on startup? To detect and remove potential malicious programs, run Bitdefender Antivirus on your Mac Mini and eliminate any hidden threats it would find.Ĭhances are your Mac Mini has been loaded with some unnecessary apps or services when the machine boots up. Not all malware will cause severe damage but tend to slow down your Mac system. Though macOS is considered less prone to virus infection compared to Windows.īut some Mac users reported that their Macs being “hijacked” by annoying malware, adware and bundled software downloaded from third-party sites.