Memory clock decrees

[Osyntyyy]

Hello, I have an old RX 570 4GB that runs worst than it used to do... But only on the memory. I had my memory just fine a 2250 MHz (max for the bios).  And now about one week later it does not even run 1850 MHz. But the thing is that under that 1 week I bios flashed it back to the stock bios (because it got bricked) and I also updated the drivers under that time. So I started with using old drivers and it would still not work on 1850 MHz. So now I wonder if there could be something with the bios flash that made it worse. Any ideas what I should do?

Edited March 24, 2021 by Osynt