Question SSD write speed is very slow ?.

[minh2319]

I have an iMac 2017 using a Samsung 870 QVO 1TB SSD and its writing speed is very slow, only 14MB/s.
I have been using it for 2 years, is there any way to fix it? I often use it for a long time so it happens like that, My hard drive has 700GB free space

 

[rgd1101]

how full is the drive?

 

[minh2319]

how full is the drive?

I've used 30% of the drive.

 

[mmp09]

Sometimes doing a Secure Erase or Sanitize operation on an SSD can bring back original speeds.
However this operation is permanently data destructive, so you must create backups first if you want to try that way.