@CucoxBaT Thanks for your help friend.
my results:
after upgrading the chipset: still 30 fps
after upgrading bios to f13 version: still 30 fps
after removing my nvidia drivers with DDU and installing the v417.71 version you shared the link to: I continue with 30 fps
Absolutely nothing has changed, if I look back at the ship, the game looks fluid.
The same 30 fps on the ship and constant drops to the ground.
About your other comments:
RADAR_PRE_LEAK_64 - RAM problems (gpu maybe?)
I'm researching about this ..
LiveKernelEvent - power loss?
I had a power outage recently, but the game was already broken before.
PS: My roommate has almost the same hardware as me, bought at the same time.
We have the same motherboard, the same RAM sticks, the same processor, except the GPU, I have an RTX 2060 and it has a GTX 1660. Another difference is my SSD which is m.2 and his is SATA , we both do not have HD.
The game runs perfectly on his computer, with 100fps on the ship and constant 144 on the ground. He never had this FPS bug.
This isolates my problem as possibly my GPU, no?
A new version of my dxDiag is attached.
Again thank you very much for your help.