Samsung External SSD Very slow (t5, t7)

I recently bought 16" M1 Max Macbook and I'm very disappointed cause my external ssds get's very slow speeds. Fractions of what they used to on intel mac. My t7 gets max 200 mb/s write speed, the read works good (around 700mb/s) I've read that many people had this problem and update to 13.2 helped. I'm 13.2.1 and nothing works. I tried reformatting the drive from exfat to Mac OS Journaled and even to APFS. The speed is still disappointing. Anyone have a solution?

MacBook Pro 16″, macOS 13.2

Posted on Mar 1, 2023 01:08 AM

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6 replies

Mar 1, 2023 03:34 AM in response to Skateshopusd

While I can't say that any of the items below play a part in the present problem, there are already some things of concern in this report. As you are beginning fresh with a new mac, I feel obliged to issue some warnings.


1) You have system security disabled. That is never a good idea. Security updates are separate from regular OS updates, and should be kept on.


2) You have "surfshark". Instead of third party "security" or "antivirus" software, keeping system security on and up to date is the correct way forward.


Effective defenses against malware and other threats


3) You should not use applications like MemoryClean, ever. They actively decrease system performance.

No such program should be used on any version since 10.9 Mavericks. The OS actually tries to keep memory occupied, to quickly reuse. It compresses things and decompress and reuse more quickly than it would retrieve from disk. Files are cached in RAM. What programs like MemoryClean do is just create free unused memory, countering what the OS is doing, and hurting performance, and possibly causing crashes - like this:


2023-02-24 15:08:49 Memory Clean Crash

Executable: /Applications/Memory Clean.app

Details:

libsystem_c.dylib: Attempt to pop an empty graphics context stack.




All of this is even more noticeable with demanding applications like FCP, which I see that you have. I like FCP a lot, by the way.



Mar 1, 2023 02:12 AM in response to Skateshopusd

Do you have Samsung software installed? Try uninstalling. Your mac can accessand use the drive without third party software, and that is known to cause issues.


If the issue persists, there could be other software issues - especially common if everything was migrated from an older mac to this one. There could be old extensions or daemons causing trouble.


Please run Etrecheck and post its full report here. Use the "additional text" button and paste the report into the text box.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

Samsung External SSD Very slow (t5, t7)

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