My 2020 MacBook Air, M1 (upgraded to Ventura a few days ago), takes 10+ seconds to populate a file list for my external Samsung T7 SSD. I'm using an Apple T3 cable (went to that to get semi decent speeds, supposedly). When I browse the drive via Finder it's quick, pretty much instantaneous. Safari, Adobe software, etc, all take 10+ seconds to show the file list even if I've just viewed it a few minutes before.
Please download Black Magic and upload the results of your speed test for your external Samsung hard drive
https://apps.apple.com/us/app/blackmagic-disk-speed-test/id425264550?mt=12
Or
https://www.blackmagicdesign.com/media/release/20190808-04
The cable may be the problem. Your hard drive is not a thunderbolt 3 hard drive.
It is a USB 3 hard drive.
It's possible because of silicone Max not functioning at full speed USB-C 3 you are only getting 500 read write
you're not going to gain anything by using a thunderbolt three cable
(I don't know if it is entirely backward compatible. Please check that on Google)
Nonetheless, your hard drive is only capable of 1000 read right if you use the wrong cable. There is a strong possibility you could decrease that speed by 50%.
While Thunderbolt is relatively easy to understand because it was custom designed for Apple devices, USB-C with its various 3.0, 3.1, 3.2 and 3.2 Generation 2, 3.2 Generation 2×2 standards and the speed you get from them when connected to a Mac is complicated to understand.
This confusion has led to particular disappointment among Apple Silicon M1 Mac users who, even with the M1 Pro, M1 Max and M1 Ultra chips, have bought external hard drives promising incredibly fast data transfer speeds only to achieve less than half of what they claim to be capable of in reality.
Here we try to explain why this is happening so you can make a better choice when buying and external hard drive or external display for your Mac
https://machow2.com/thunderbolt-vs-usbc/
“takes 10+ seconds to populate a file list for my external Samsung T7 SSD. I'm using an Apple T3 cable (went to that to get semi decent speeds, supposedly)”
This is a picture of a 2000 read-write SSD twice as fast as your Samsung drive using a USB C 3 connection versus thunderbolt which would give it the same speed if it had a thunderbolt connector on the hard drive
Download and use
Have you installed and run any "cleaning", "optimizing", "speed-up", anti-virus or VPN apps on your Mac?
If you have download and run Etrecheck. Copy and paste the results into your reply. Etrecheck is a diagnostic tool that was developed by one of the most respected users here in the ASC and recommended by Apple Support to provide a snapshot of the system and help identify the more obvious culprits that can adversely affect a Mac's performance.
Copy the report
and use the Additional Text button to paste the report in your reply.
Then we can evaluate the report to see if we can determine the cause of the problem.
It's widespread on M1 Mac's running Ventura with the update I am sure that they will have a patch to the update.
see
This is one of many reports:
“I’ve got a major problem with Ventura, I’m getting really slow transfer speeds after the update it’s as if everything has reverted to USB 2.0 speeds.
Spoke to apple support they’re clueless.
Yesterday on Monterey it was perfect!
Anyone else got this issue?”
On top of that the Samsung SSD your using is reporting read write of only 500 or 200 on other M1 Macs
https://www.uubyte.com/blog/how-to-install-macos-ventura-on-an-external-ssd-drive/
Before OSX update
After OSX update
The hard drive built into your 2020 MacBook Air is three times faster than the Samsung drive that you referenced the Samsung Drive you reference is a USB three drive that is only 1000 MB read right that is infinitely slower than your current internal drive
replace it with something closer to what you have in your computer now
This is closer to 3000 read write
https://eshop.macsales.com/item/OWC/TB3ENVPSX02/
Or also closer to 3000 read write
I actually bought the new cable because I used that black magic program to test my drive speed with the cable the drive came with. With the supplied cable I was getting maybe 40-50MB/s. The new one is obviously faster. But this issue predates the cable.
What I would do now to verify that the Speed test very, there’s no problem with your external is to post the results
I think it is the newest update to OS X. I would do black magic, Speed test, and if you could post it, whatever the numbers, it will tell us a lot of information
I'm happy to continue helping you and looking for the problem that I would do. Also if you have another computer that is not updated to the newest OS try the speed test on there as well that would that is not updated to the newest OS try the speed test on there as well that would do a great amount of narrowing down. What's going on
if you were are getting 50mbs
With the supplied cable do you remember what you got after the T3 cable?
The. report looks very clean. Your problem has to associated with the speed of the external hard drive.
Download and run the free Black Magic Speed Test app from the App Store and post the results here.
Whafe you tried different ports on the M1 or a different cable?
I haven't installed anything except Adobe stuff and Excel/Word. I just purchased the laptop a month or so ago.
That very interesting I assume that the thunderbolt three cable is operating is backwards compatible to USB C 3
have you seen the post below about people experiencing the same problem as you are?
MacBook Air M1; all software slow to populate file list from external drive
