You don't have to anything if you're already using Ryzen Master.
Ryzen cpu's behave a little differently; idle temps are going to be a little higher on them compared to Intel's.
But if under a workload, you find it reaching some 80C+ temps, I would then suggest remounting the cpu cooler.
The stock push-pin models are a little tricky to mount correctly; it's fairly easy to screw it up.
You'll need to clean off the old paste(alcohol and a soft cloth works), add new(just a small pea in the middle), and secure the pins in an 'X' formation:
-Top-left and bottom-right at the same time - the pins must CLICK!
-Top-right and bottom-left at the same time, CLICK, and done.