samsung qvo

Hi there, my Samsung 860 QVO 1 TB is running much slower than should (from what I've researched), I'm using AHCI mode and I've plugged the SSD into SATA0 . I've also made sure that I updated the drive using SAMSUNG Magician. Everything from what it seems should be fine, but the SSD is still not...

So I got a new SSD. I used Samsung Data Migration to start copying the data over. After 30m it still said 0%, so I clicked cancel and restarted my PC. ‘Windows failed to start.’ Damn.