My opinion, the temps seem to be fairly normal for a AMD Wraith CPU Cooler.
Your Processor's Maximum Operating Temperature is 95C. Since running under heavy loads it is less than 80C which is very good, I don't see what issue you are having.
I have the same processor but I use a 3rd party CPU Cooler which maintains my idle to light loads in the low 40c to high 50c (constantly fluctuating between those temps) depending how cool my room temperatures are.
Stressing my 3700X the highest temperature I got was 72C with a room temperature of 82-83F which is way below 95C.
So I don't worry about my Processor's temperature as long as it runs below 80C under normal or heavy loads.
Note: please translate your next reply into English since this is an English Only forum. Thanks