So after I got poisoned, the loading screen for the conversation with Antonius dropped my FPS to 7.8 and then bumps it back up to normal after the conversation starts. After the conversation normally it just lets you back to the game but it starts another loading screen. This one doesn’t end and I can’t progress the main story otherwise. I tried this 6 different times with different settings on graphics. No matter what graphic settings during these loading time it stays 7.8 fps. Also during the loading screen, objectives for the daily monastery schedules are still changing with time.
Edit:
Ok so I found where it breaks. I was suppose to pass out after ingesting the poison before talking to him. Previously I ran straight to him and talked to him because he was the most suspicious out of the others. So after talking to him previously it was loading the event of you passing out and waking up during the conversation which broke the game.