bloomy :
pretty much 99% always in battlefield 1 and gta v
Those games rely heavily on CPU. If you have high CPU usage while not gaming, then see whats using it.
If it only happens while gaming, then you're bottlenecked. Overclocking can help. Messing around with the settings to reduce CPU usage can help too (like draw distance, ...).
Also, make sure you're on
performance mode. (both power options from control panel and BIOS)