I have this drive as a Windows 10 system drive and the read speed is about 3300MB/s, but the write speed is only 2000MB/s. I think it was higher at some time, but I'm not sure. What can be the cause of that? It's advertised with 3300MB/s write speed. If I copy a big file from my other SSD (Samsung SSD 980 PRO 2TB), the speed is slow right at the start of copying and DiskMark64 also shows the slow speed.
