I'm having the same problem, but I don't know what you mean by the launch arguments/options. I looked in the options menu and didn't see anything
Edit: I looked up how to do it via making a shortcut, and it didn't help the problem at all.
Interesting. I am testing on a Ryzen 3900x and am not seeing any issues at all. Can you open your resource monitor through the task manager in windows, is there something there that is maxing out? I guess I am trying to figure out if it's an IO issue or not. Would you happen to have an HDD? Or are you on SSDs?
When I opened up the game today, the issue didn't occur right away like it had been doing before. This time, it proceeded just fine until I got to an encounter, and then afterwards, the game would just freeze when I tried to move. I opened up the resource monitor, and it said that the game was using 73% of the CPU, but it dropped to 40% while I was watching. When I clicked back over to the game, my computer sent me an alert saying that the game wasn't responding. When I closed the game and reopened it, I was again able to play just fine until I got to a new encounter, and then afterwards the same thing happened.
I have a SSD.