Hi, give it a go with curve optimizer and/or offset undervolting.
I've shared the video so many times that should be easy to find.
From my experience with the average silicon, you should be able to achieve at least -10 on the Curve Optimizer plus -0.5v on the offset.
Why CO plus undervolt?
Sometimes, depending on conditions, curve optimizer can lead to a lower average temps but increase full load temps.
If the CO does lower temperature overall, skip undervolt (since CO is already undervolting) then try -15, -20 and so on till you find a sweet spot. Do plenty of stress tests to ensure a crash free system.
TLDR
Curve Optimizer is a cool new way to bump performance by altering how it behaves during certain conditions.
Offset undervolting is a board feature that will reduce the voltage that the CPU asks at any given moment. Its linear not like the CO.
Good luck and enjoy the performance boost.
The Englishman