Extremely slow file transfer speeds on OS Ventura

Same problem here!

Ever since I updated to macOS Ventura, the transfer speed/write speed to external drives have dropped significantly. It takes almost 4hours to copy 1GB. It would be great if someone could come up with a fix before the next update.

Yes!

the speed of my T7 is feels even worst then what blackmagic says.

I also tried to talk with apple support by phone but they really didn't help and they wanted me to do stupid tests like format the drive ,I was certainly sured thats won't help.

its a bug of the macOS I really hope they will detect the problem and solve it for the next update.

its important to say that its only T7 problem and Sandisk works perfect.

make-me-happy wrote:

That's because I'm not really trying to get the issue solved

Then you're in the wrong place. This is a user-to-user tech support forum for Apple products. If you are here for some other purpose, you are likely to be disappointed.

Both are exFAT drives...formatting the drive is absolutely out of the question because I need the data on them.

Well there goes that idea. To double-down on what I said above, if one of your restrictions is that you can't actually make any changes, then there is nothing anyone here can do for you.

Probably the only thing we can do is try to reproduce what you are seeing. I just happen to have a Samsung T7 that is not exFAT. I get about 650 MB/s on the Intel Ventura MBP, about what I would expect. My newer M1 MBP gets slightly faster speeds, but then it is also a faster machine.

And since we've already started with the personal attacks, I will add one more thing...

Probably the very worst thing you can do is assume that somewhere at Apple someone has seen this thread and has urgently dispatched software engineers to start working on a bug fix in Ventura. I can assure you that nothing of the sort has happened. It is extremely unlikely that anything of the sort will ever happen in the future.

If you sit on your hands, you will just get more and more frustrated. Like it or not, you are the one that is going to have to do the debugging on this. If you have data on externals that you can't erase, it will be your responsibility to copy that data somewhere else so that you can erase that drive and try a different format. If will be your responsibility to backup your computer, erase it, and try it again with a factory fresh installation.

I'm not saying this to be mean. I don't have the problem. Therefore, I can't help in any way.

You are free to keep using this thread for as long as you want. You can post whatever it is you want in it. You can demand Apple fix it. You can call me names. Whatever makes you feel best. Or you can get to work and start isolating the problem bit-by-bit. Only those people who have the problem can do this.

make-me-happy wrote:

A senior Apple technician directed me to encourage people who are experiencing this problem to make a bug report. That is literally what this thread is doing.

You didn't talk to any senior Apple technician. You talked to someone at Apple support. If your problem isn't described in some existing Apple support document, they are just going to kick you to the curb like this.

Why are you starting fights and then getting butthurt when people call you out on it? I've never seen anyone be as rude as you for not using a forum in the exact way you would prefer. Totally bizarre behaviour, utterly tedious.

You want to know what's tedious? Dealing with responses like yours, time after time, year after year.

Never called you names.

I'll quote you - "Wow, this is the first narky comment I’ve seen on this forum, congratulations."

Please stop commenting here

Happy to do it. I've told you exactly what you need to do to get this problem fixed. You can do that if you want, but without me helping you. Or you can just sit on your hands, like so many before you, and hope a fix magically arrives one day. macOS 14 will be released in just about six months from now. If there ever is a fix, that is where you'll see it. Enjoy the wait.

Hi

May have a solution

I had the same slow transfer speeds for memory sticks since installing Ventura 13.0.1. My memory sticks were formatted to exFat (for moving files between a Mac and PC), I have just used the disk utility on my MBPPro (2017) and erased and reformatted the memory sticks to Mac OS Extended (Journal) and the transfer speeds are back up to normal.

NB Memory Sticks nothing special a couple of SanDisks 64GB and 128GB, one was a USB 2 with a USB C adapter the other was a dual USB C/USB 2 connection memory stick.

Hope this helps

I use Samsung T7s, SanDisk Extreme Pros, LaCie Rugged Drives, and UHS II SD Cards. Transferring between all drives and SD cards have been extremely slow since updating to OS Ventura. Extremely frustrating when you move hundreds of gigs or even TBs of data every day...

I used to be able to transfer 1TB of data in 4 hours.. now it takes 26 hours.. WTF is going on? Tried on Ventura and Monterey with Intel and M1.. all the same... even stopping the transfer it hangs.. for a 5 thousand dollar machine this is balls

Yo tengo el mismo problema al comunicarme con Apple me pidieron hacer varias pruebas incluso probar en modo seguro y el problema continuo, como no se pudo resolver escalaron el problema y agendaron una llamada para apoyarme con el problema para lo cual me pidieron reinstalar el sistema operativo lo que se me hizo muy extremo ya que hay que hacer respaldos y uno necesita el equipo para trabajar. Cabe mencionar que incluso el primer asesor que me atendió por chat me dijo que inclusive podría ser por mi conexión a internet para lo cual se me hizo chistoso ya que no tiene nada que ver y en la llamada con el especialista me pidieron desactivar programas de inicio que solo tenía uno mismo que usaba antes de la ultima actualización y le comente y son muy tercos ya que les comente que eso lo note desde la ultima actualización ... en resumen me pidieron que reinstalara el os para lo cual veo que es cuestión de la actualización y en fin dudo que lo acepten.

En mi caso

Macbook Air M1 MacOs Ventura 13.1 4gb=1s

Macbook pro M2 MacOs Ventura 13.1 4gb=1min

No, ya que por cuestiones de trabajo no me era posible de momento pero me di cuenta luego luego tras la actualización ya que también tengo un dock Dell 6000 para 2 monitores mas y tras actualizar este ya no prende en automático tengo que desconectar y volver a conectar el cable de alimentación para que lo reconozca y es un problema muy molesto tener que estar haciendo eso. Sobre lo del tema que el internet afectaba la transferencia se me hizo algo ilógico ya que no tiene nada que ver con ello por eso también me di cuenta que no tenían idea de lo que pasaba.

VPNs, A/V, cleaning and other similar apps have been shown to interfere with the system's operations. Unless you're using a true VPN tunnel, such as between you and your employer, school or bank's servers, they are useless from a privacy standpoint.  Read these two articles: Public VPN's are anything but private and Former Malware Distributor Kape Technologies Now Owns ExpressVPN, CyberGhost, Private Internet Access, Zenmate, and a Collection of VPN “Review” Websites. 

They just reduce your bank account and interfere with normal system and application performance.

Acabo de colgar con soporte de apple y lo que me dicen nuevamente ahora que vuela a reinstalar el OS pero esta vez borrando todo, para descartar un bug y que si el problema persiste que los vuelva a contactar para escalar el problema con un área especializada.