Use GPU Tweak II, instead of command line in Claymore.

https://www.asus.com/us/site/graphics-cards/gpu-tweak-ii/

In my experience it work better than Claymore.
Set power to 65%.

Considder :
Create a *.bat file and load delay 90 sec GPU Tweak II.
Create a shortcut.

Ad to startup file, together with shortcut to start.bat for Claymore.

This creates auto start, makes life more easy.