Hello guys, I have an SN850X and had issues with the writing speed being in the 3GB/s area in some benchmarks. After digging around the forums I gave up finding a solution because I was not too troubled by it. Then I saw that DirectStorage was disabled because of a driver issue. The driver was called MBAMFarflt. After doing some searching I came upon a forum post at MalwareBytes forum and reddit. Turns out some Antiviruse programs can interfere with the storage stack. I did some tests and disabling ransomware protection solved both the DirectStorage issue and the write speed issue. Posting here so that people can check if they are affected too.
DISCLAIMER: DISABLING YOUR ANTIVIRUS PUTS YOU AT RISK AND I DO NOT RECOMMEND IT
MalwareBytes is already working on a fix for DirectStorage.
Ransomware Protection Disabled
Ransomware Protection Enabled
EDIT: Posting links to the forum posts