Hello MUNKHTUR ENKHUCHRAL,
Welcome to Microsoft Q&A forum. I'm happy to help.
I see that you are having FPS drop issue while playing game. May I know if you have tried the AI assistant suggestion yet? Before we proceed, I'd like to confirm a few things. You said that suddenly the game drop to 0 FPS, which is equal to a screen freeze. Normally, a drop of FPS could take your FPS to one digit, but not 0. I suspect that there might be something that stop working at the time of the freeze. In this case, can you please check the event viewer to see if there are any events that trigger when this happens?
I'm waiting for your reply.