I just recently built a new pc and everything went well but when i first booted my bios said my processor, which is an i5-9600k, only had 4 cores active. I told myself id look at it tomorrow because it was late and then when i logged on to test some games i realized that i should be running these games waaaayyyy better especially since i have a 2060. For example, Destiny 2 on medium setting I got just barely above 30 fps, CSGO on max settings was a choppy 45-60. Please someone tell me I'm dumb and its an easy fix and that i dont have to replace anything. My full specs are in my bio. Also im sorry if this is too long, ive never posted on a forum before.