Slower Hard Drive on Mac than ever

macos tips
1

I tested my hard disk via Blackmagic Disk Speed across the network, but I found the speed is slow.

How can I make it faster?

2

Here are some suggestions:

  1. Clear cached files with a professional tool like CleanMyJunk.
  2. Reset SMC.
  3. Check the disk health with First Aid in Disk Utility.
  4. Test in Mac Safe Mode.
3

These posts can help you:

Slow External SSD and HDD on macOS
Mac Running Extermely Slow, Why and How to Fix