Ryzen 5 1600 poor performance after installing aftermarket cooler

Hello,

I changed the Wraith cooler for another one and now my Ryzen 5 runs at maximum 2800 MHz and not the 3700MHz I selected in the UEFI. Any idea what could be the problem?

 

Edit: Also at the same time, I installed the W10 fall creator's update. Maybe it has something to do with that?