Run a free user benchmark test of your pc and your friend pc then compare.
I have a dell g5 5000 originally with an i9 100900f and 2060s but I switched it with a 3070ti with a new psu etc, but i have noticed that my friends who run the same settings with lower GPUs 3060 getting higher fps in games why is that the case?
upgraded my dell g5 5000 with 3070ti