Need some help figuring out why I get low fps

[matt.espo]

so i just built my new pc
specs

CPU: RYZEN 7 1800X
GPU: MSI 1070 TI TITANIUM
RAM: 32GB OF DDR4
MOBO: MSI X470 CARBON PRO

And i was wondering why i only get 120 fps on average in csgo with low settings!
i see builds with 1050s and 1060s getting 250+ on high!
i just really need some help

 

[matt.espo]

MERGED QUESTION
Question from matt.espo : "Need some help figuring out why I get low fps"

so i just built my new pc
specs

CPU: RYZEN 7 1800X
GPU: MSI 1070 TI TITANIUM
RAM: 32GB OF DDR4
MOBO: MSI X470 CARBON PRO

And i was wondering why i only get 120 fps on average in csgo with low settings!
i see builds with 1050s and 1060s getting 250+ on high!
i just really need some help
More about : figuring low fps