Copy slow to and from external drives on BigSur

Can you kindly provide a reason for this. I have tested the exact configuration on Catalina on my other MacBook Air and cannot even compare, transfer that was indicated as 23days on Big Sur is don in 53 min on Catalina?

Posted on May 26, 2021 3:10 AM

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1 reply

Barney-15E

Level 10

123,050 points

May 26, 2021 5:37 AM in response to JCAOJCLA

How is the drive connected? If through a USB Hub, make sure there are no USB2 or slower devices connected to the Hub. That can force the whole hub to a slower speed.

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Copy slow to and from external drives on BigSur

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