Question Sudden drop in reading/writing speed on SSD

[I am a]

I had my Samsung 500GB SSD M2 for 4 years now and when I am copying files I can see the speed start at almost 1GB/s (lasts for 1 second) and it suddenly drops to under 1MB/s and stays like that. I also noticed slow loading in games, slow file discovery (that thing before copying/deleting files).

I also have a HDD and it behaves as usual.

What could be causing this?

 

[Bob.B]

I had my Samsung 500GB SSD M2 for 4 years now and when I am copying files I can see the speed start at almost 1GB/s (lasts for 1 second) and it suddenly drops to under 1MB/s and stays like that. I also noticed slow loading in games, slow file discovery (that thing before copying/deleting files).

I also have a HDD and it behaves as usual.

What could be causing this?

Post a screenshot from crystal disk info for this ssd.

 

[USAFRet]

Post a screenshot from crystal disk info for this ssd.

And also a performance report from Samsung Magician.

 

[I am a]

https://imgur.com/a/JjF5OJl

 

[USAFRet]

CrystalDiskMark.
And actually run the Samsung Magician Performance test.

 

[I am a]

CrystalDiskMark.
And actually run the Samsung Magician Performance test.

https://imgur.com/a/q4g8iri

 

[USAFRet]

Check the properties for this drive, and verify that writecache is enabled.

 

[I am a]

Check the properties for this drive, and verify that writecache is enabled.

just checked and it is enabled