macOS Disk Utility
Run macOS Big Sur from an external HD for faster results
Is your Mac upgraded to the hilt and still sluggish, or cannot be upgraded at all? Then maybe an external HD running macOS could be the answer
Disk Utility
Developer
Apple Inc
Difficulty
Time needed
59
Mac speed issues are usually resolved by stuffing in more memory, but what if you have reached the limit or own one of the late 2015 21.5-inch Retina 4K iMacs that cannot be upgraded? The solution could be to run your Mac from an external hard drive.