Changed my entire PC, I have now a Intel Core i5-8600K CPU @ 3.60GHz 3.60GHz, 16 GB Ram and a NVIDIA GeForce GTX 1070. I don't know if I need to give you some more information.
Here is some proof about I really changed it: https://imgur.com/a/K8VYHit (the left one is the old and
the right one is the new) Thanks for the support!