Run macos Big Sur from an external drive 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
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.
We put this to the test on the above imac and, running macos Big Sur off a 2TB, USB
3.0 desktop hard drive (£89.95), noticed a considerable difference in speed with only fleeting glimpses of the spinning beachball. Here we show you how to set up your own external macos hard drive so that you can try this out and see if it works for you.