If your games are not as CPU dependent as they are GPU dependent then they won't push your CPU as hard therefore it won't need to boost to it's max clocks.
But I would make sure you have the newest BIOS for your MB which will; most likely improve performance and stability with your 3600:
Version 2501
2019/07/1814.66 MBytes
ROG CROSSHAIR VII HERO BIOS 2501
Fix an issue where the mouse will sometimes freeze in the UEFI.
Update multi-language string.
Fix an issue with the Safe Boot button.
"Before running the USB BIOS Flashback tool, please rename the BIOS file (C7H.CAP)
https://dlcdnets.asus.com/pub/ASUS/...VII-HERO/ROG-CROSSHAIR-VII-HERO-ASUS-2501.zip