Question low CPU usage and low GPU usage

[HK416Auto]

PLZ help me！ In many games, my CPU and GPU usage both very low，（GTA5 SQUAD COD:WW2 RUST Farcry5）
Using 8700K (OC TO 5.0GHZ) 1080TI 2X8GB 3000mhz .
I use monitoring software to monitor the usage of each CPU core while playing games, and none of them is full-loaded. There is no CPU bottleneck in common sense，but GPU usage is still very low.I want to know what went wrong.

 

[HK416Auto]

To solve this problem, I spent the whole night trying CPU and memory overclocking, but it didn't work. It really bothered me.