i can see your problem be the CPU if you look close your processor is Intel Core i7-8550U 1.8 GHz
and the U means "***ultra-low-power***," they're instead low-power designs made with efficiency in mind. They have lower clock speeds, lesser cores, and more importantly, a very low TDP.
all the other part of your pc is good but you can search for way or solution for your processor to be faster
good luck