Low fps on high end pc

[guivital3]

I have been getting a poor performance on AC odyssey with a very good pc and i would appreciate if anyone could give me some insight
Config 
CPU i9 9900K with noctua d15s cooler 
GPU gtx 1080 ti 
RAM 8gb corsair 2400Mhz
mobo z370-p 
600w 
Usually im getting around 40-50 fps playing on ultra high settings 1080p 
I already used msi afterburner to check heat and cpu/gpu/memory usage and disk usage 
CPU stays around 60%
GPU 60-80% 
memory 80%

I have tried everything i know to troubleshoot this but i had no success 
GPU runs just fine on furmark (around 160 fps on 1080p) 

I need help to fix this, can't find a solution 

[FatherChaos]

The game is Poorly optimized and uses DX11. 

 

There is nothing you can do other than lowering your settings.

 

Buy 2080 ti  is your only option to increase your fps to 100

 

 

[guivital3]

I know the game is poorly optimized but people with the same hardware, or even worse, get way more fps
all benchmarks with 1080ti i7 or i9 i watched had over 80 fps, and i struggle to get 50
i also get lots of huge fps drops 
if you look at the curves, i get like 9 fps min on the benchmark of ac odyssey 

[FatherChaos]

 

56 minutes ago, guivital3 said:

I know the game is poorly optimized but people with the same hardware, or even worse, get way more fps
all benchmarks with 1080ti i7 or i9 i watched had over 80 fps, and i struggle to get 50
i also get lots of huge fps drops 
if you look at the curves, i get like 9 fps min on the benchmark of ac odyssey 

The only flaw I see in your system is the 8gb of RAM,

 

Your OS is using 2gbs of RAM (64 bit) or 1 gb of RAM (32 bit)

 

So if the game requires 8 gb then it is overflowing to your storage.

 

Out of all the ones you watched, Did any of them have 8gb of ram?

 

[guivital3]

Memory stays around 80% while i'm playing the game (task manager) so i dont think it is the reason, but it could be 

[FatherChaos]

50 minutes ago, guivital3 said:

Memory stays around 80% while i'm playing the game (task manager) so i dont think it is the reason, but it could be 

That is really interesting. So with that said I watched a few and they were pushing up towards 8.5 Gbs.

Were you looking at your overall mem usage or just for that application.

I would run a mem test.