Huh? Wha?
Fps is a measure of cpu power, not gpu. With @ 10% usage, that's a lot of wasted fps. The pc is far more capable than that.
Got nothing to do with the ram. Usage isn't how much of the cpu is used, it's the amount of resources it uses, subtle but definitive difference. It also is a measure of wait time. Basically right now, 90% of the time it's doing nothing but waiting. That's why the fps is low.
When you say 'drivers' are you talking about All the drivers? or just the nvidia drivers, because it's just as important to have the motherboard drivers too. With a fresh windows install on a new pc, all the communications, pcie, Sata etc are being handled by windows drivers. Which frankly suck. They are generic, the NVMe driver is over 10 years old at this point and never updated.
So it may be as simple as you have flagship components capable of pcie4.0, talking to each other at pcie3.0 speeds with pcie, usb, Sata controllers set for windows generic default instead of motherboard performance driver settings.
I'd worry more about getting the pc setup right, adjusting any bios settings, windows settings etc than the particular fps of a game compared to other onliners who already streamlined their pc. I'd be using Cinebench, Prime95 small fft /AVX disabled, maybe underclock, power plans, stupid stuff like disable Xbox dvr/game helper, if using Geforce Experience see if it's set for 4k DSR etc.