You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Extremely slow file transfer speeds on OS Ventura

Transfer speeds on OS Ventura are starting to make my Mac Studio unusable. Transferring 300GB from one external USB SSD drive to another is expected to take 2 days!? And that was after spending an hour stuck on "Preparing to Copy".

I'm not the only one either, see threads [1] [2] [3] [4] [5] [6].

Anyone experiencing this issue please report to https://apple.com/feedback or by using the Feedback Assistant app. The more data they have the quicker it will get fixed.

Mac Studio

Posted on Dec 4, 2022 11:50 PM

Top-ranking reply

Puneet L

Level 1

10 points

Posted on Jul 29, 2023 5:55 AM

I was able to "solve" it by disabling Spotlight search on the specific external drive. Settings > Siri and Spotlight > Privacy > Add the external drive to the list to disable Spotlight indexing.

Takes a few minutes to kick in and then copy speed goes back to pre-Ventura days.

View in context

Similar questions

70 replies

Ax_Silva

Level 1

8 points

Jan 25, 2023 2:38 PM in response to make-me-happy

a ti te lo resolvió la actualización?

May 2, 2023 8:15 AM in response to jrod72

That's too bad. 13.3.1 did fix this issue for me on two computers, a Macbook Pro M1 and a Mac Studio Ultra.

JSAVOOR

Level 1

12 points

May 3, 2023 4:15 AM in response to make-me-happy

On M2 MBP and OS Ventura 13.3.1 and copying files across the 1G network is like watching hair grow. Has there been a solution to this issue?

Jun 5, 2023 6:34 PM in response to make-me-happy

I uawd the Thunderbolt 3 (USB-C) Cable instead of using the USB-C to USB2.0. I was able to copy 200GB in an hour to a SAN Disk.

Jul 1, 2023 5:04 AM in response to make-me-happy

not great

Jul 1, 2023 6:01 AM in response to FreeRider350

It's finished now

In total it took 26 mins to complete 24GB.

Just wait a bit at the beginning, while it's doing all the time calculations.

Aug 1, 2023 4:35 AM in response to Puneet L

This! Thank You!

Aug 1, 2023 4:39 AM in response to Puneet L

It is not "fast" by any means, now, but at least it's not snail slow.

ku4hx

Level 7

23,592 points

Aug 3, 2023 7:34 AM in response to make-me-happy

Maybe a T7 issue with your unit. We've got 13 T7s attached to five Macs and all run exactly as expected: USB-A around 450-480 MBps; USB-C 900+ MBps

Aug 7, 2023 10:39 AM in response to Puneet L

Disabling spotlight for my Drobo (on a Macbook Pro 16") worked for me, too.

Thanks so much.

Extremely slow file transfer speeds on OS Ventura