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1 min read 5 stepsFebruary 5, 2026Verified February 2026How to Troubleshoot Slow Mac Performance
Diagnose and fix a sluggish Mac with these troubleshooting techniques.
1
Check Activity Monitor
~15sOpen Activity Monitor (⌘+Space → Activity Monitor). Sort by CPU or Memory to find resource hogs.
2
Restart your Mac
~15sA simple restart clears RAM and fixes many performance issues. Don't just sleep — do a full restart.
3
Check available storage
~15sApple menuAbout This MacStorage. If your disk is nearly full, performance suffers dramatically.
4
Reduce login items
~15sSystem SettingsGeneralLogin Items. Remove unnecessary apps that start at login.
5
Reset SMC and NVRAM
~15sFor persistent issues, reset the System Management Controller (SMC) and NVRAM for your Mac model.
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