After Ventura Updates, Why My External SSD Speed Is Slow?

macos tips
1

After updating to macOS Ventura, the transfer speeds for all my external drives have dropped significantly, ranging from 5-30MB/s compared to the previous 800-900MB/s. I use a variety of SSDs from Crucial, Samsung, and Kingston, and all of them are experiencing the same issue.

I’ve reinstalled Ventura with Apple Support’s assistance, but it didn’t resolve the problem. When I tested the drives on another MacBook Pro running macOS Monterey, they performed normally without any issues.

Currently, I’m having trouble creating a Time Machine backup because the process keeps failing, and transferring data to my backup drive takes an excessively long time.

As someone who works in video production, I know that the slow read/write speeds are severely impacting my workflow and causing my applications to run sluggishly. This is disrupting my work, so any help would be greatly appreciated.

2

Hey, maybe the reasons are:

  • Your macOS Ventura has some bugs.
  • The drives or the permissions are corrupted.
  • Something wrong with Spotlight Indexing.
  • Third-party software conflicts.
  • Outdated drive firmware.
  • macOS configuration issue.

This post lists useful solutions, hope they can help you: Slow External SSD and HDD on macOS Ventura.

3

To fix SSD runs slow on macOS, you should back up your drive and recover data from it first, because your drive may have a risk of losing data.
And it’s highly recommended to utilize iBoysoft Data Recovery for Mac, which can recover data quickly from both SSD and HDD.
Then you can:

  1. Repair the drive with the First Aid in Disk Utility.
  2. Quit some apps using the external drive.
  3. Update macOS…