Only for noobs that don't switch workload from graphics to compute
For all the knowledge you have, you should act more civilized.
Blockchain is faster for some, even with the compute enabled on the latest drivers. It also has another advantage, that you don't need to manually switch to compute mode every single time on a driver install.
Switching display connection and restarting "fixed" it... but yea, latest AMD driver is borked

, now controlling clock&voltages is erratic...