Hi all...Can you pls help me? my hash rate is too low 11 mh, it has to be 26 mh etc..

3 drivers installed with dd driver uninstaller
first 17.11.4 crimson
second 2020 20.8.1 adrenalin
now 18.5.1 still same 11 mh

System
windows 10 64 bit 10.0, build 19041
12 GB ram
RX580 8 GB
virtual memory 36000