I see You mean really benchmark posted here are runned in safe mode ?Oh yes man, you got a lot of stuff running in the background^^.
And this only what i can see in your screenshot. Do a clean startup or try safe boot mode and do the benchmark again. You'll see much better results.
I'll try to test with a cleanup and try again that's true, will say you.
I just installed my 3090 in gpu extension slot with the pci-e extension cables 4.0. Working nice my CPU get some fresh. I can reach 490W on the 3090 and CPU stay et get high with PBO.
I need a watercooling