My PC does not reach the desired values?

My Pc (Rtx 3070, R5 5600x, 16 GB RAM 3200mhz, B550 Gaming Plus etc.) achieved the values of a 2070 super in my test and had fps drops to 140 fps in games like Fortnite or Rainbow. Despite the latest drivers and the latest bios. Of course, these are all numbers in the area where it is actually unnecessary, but I still want the service that is given to me as a buyer (3070> 2080s)

Maybe videos like this will help you. So I got almost 20-30 strong fps more out. Through such videos