Game is not optimized exclusively for Nvidia hardware. But deep down you probably already know that your system is no longer in balance because you’re on a 3700x
I personally know… because that’s the chip that I upgraded from after getting my 6800xt and for a few weeks I still had a 3700x. Card was too strong and it’s sitting there waiting on the cpu to give instructions and stuttering on top of it because the cpu single thread is maxed out and the card is waiting with nothing to do… result?.. frametime increase… absolutely nothing to do with amd or Nvidia.
Don’t spread misinformation.
Your graphics card has nothing to do with your issues. You want this sim to work properly? Your entire system has to be upgraded and in balance.
You want a little more smoothness? Push the render scaling up a bit so the card actually has something to do on its own so the sim doesn’t flip to mainthread limited as much as its doing now.
Or you can complain all day that it’s your videocards fault when it clearly is not. If you were not going to upgrade your cpu for a while there was no reason to go get a 3090,3080 or 6900xt or 6800xt. Your top card for that cpu chip is a 3070 or 6800 non xt.