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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.

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Similar questions

70 replies

Ax_Silva

Level 1

8 points

Jan 24, 2023 12:16 PM in response to make-me-happy

En mi caso resulto peor después de esta actualización.

Jan 25, 2023 9:02 AM in response to make-me-happy

Slow transfer speed between Samsung nbme 980 pro 2tb and Sandisk extreme portable 2tb external over rear thunderbolt ports. Says 14hrs to transfer 1.65tb. This is unacceptable by any measure.

.rtp

Level 1

8 points

Mar 23, 2023 9:18 PM in response to Dmanrox

Dec 5, 2022 1:03 AM in response to make-me-happy

One other thing: does it make a difference if you connect these drives to the Thunderbolt ports on the back?

Dec 5, 2022 1:11 AM in response to Luis Sequeira1

No luck in safe mode nor using the rear Thunderbolt ports 😔

Dec 5, 2022 4:06 AM in response to make-me-happy

I have the same weird problem with my T7 Shield.. following.

Dec 6, 2022 5:10 PM in response to arsn2002

Which make and model drive/s are you using?

Have you made a submission to Apple Feedback?

arsn2002

Level 1

12 points

Dec 12, 2022 5:43 AM in response to make-me-happy

I'm using a 16inch m1 Macbook Pro with 16GB memory. I did report the bug to Apple Feedback. Know any other work around other than waiting?

Dec 18, 2022 11:44 PM in response to make-me-happy

Transferring from a T7 that worked great before the upgrade to Ventura. Super slow now. Transferring from a T7 to the Sandisk extreme pro. Is there a patch for this?

Dec 19, 2022 1:05 AM in response to bajamalibu

Not yet! Please submit your experience to Apple via the Feedback Assistant app so they have data to fix it by.

Dec 24, 2022 8:21 PM in response to Dmanrox

100%, I’m in the same boat. Can you please make a submission to Apple Feedback Assistant with all this info? The more data they have the faster this will get fixed 🙂

Jan 19, 2023 2:35 PM in response to TransferRateWhatHappened

I feel your pain!

if you can, please submit this with as much info as possible to the Feedback Assistant. I’ve seen some improvements in the latest OS but it’s not fully resolved.

Jan 22, 2023 1:20 PM in response to Ax_Silva

Did you end up reinstalling the OS?

Jan 22, 2023 4:19 PM in response to Old Toad

I don't have any of those programs. Why would a VPN affect USB file transfer speeds?

Jan 23, 2023 10:35 PM in response to aeon_au

That’s great news! The update downloading right now.

Extremely slow file transfer speeds on OS Ventura