Question High CPU Usage with Low GPU Usage

Aphen1213

Prominent
May 24, 2019
9
0
510
hello
as the title said im wondering why im having High CPU Usage while my gpu itself has low Usage (around 20-30%) while gaming
and it cut my performance im getting like 80 fps in Dota 2 game,i know it called bottleneck but i think my system pretty decent for it to drive my Gpu which is 1660Ti
is it my ram not enough for the game??

my specs :

ryzen 5 1500X
8GB RAM (@2666mhz) Team Elite +
asrock A320M-HDV
Nvidia GTX 1660Ti Zotac AMP
samsung Sata SSD 256GB
Cooler Master MWE 450 Power Supply
500GB Sata HDD Seagate Old model (i dont know if this helps)

All Runing At Stock Speed No Overclock

Any help really Appreciated

My english sucks,its not my main language

Thanks.