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Using Windows 10 Pro. My m.2 SSD drive gets about 450 MB/s random access read/write performance in benchmarks. But in real-world usage peaks out at about 50.I'm using a Ryzen 3800x and I've assigned 4 PCIE lanes. Why is my real-world performance so bad and how can I improve it?

Using Windows 10 Pro. My m.2 SSD drive gets about 450 MB/s random access read/write performance in benchmarks. But in real-world usage peaks out at about 50.I'm using a Ryzen 3800x and I've assigned 4 PCIE lanes. Why is my real-world performance so bad and how can I improve it?

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[–] 2 pts

NTFS formatted, compressed, and indexed

That's where your problem is. It's advised not to use Windows software compression and let the SSD controller manage that (it does that automatically under the hood).

Make sure to check you don't have some SATA devices on a port that also shares the PCIe lanes with the M.2 port.

[–] 0 pt

Okay, I'll try that

Decompressing (14 hours remaining) lol

[–] 0 pt

Check your motherboard's user guide settings to make sure the M.2 port isn't shared with another SATA device. If that's the case, move your SATA device to another port to free the PCIe lanes for the M.2 port.