Did you not annotate and underline material that he said was high-yield?
Pathophysiology is literally 40-50% of Step I, and you have 3 weeks left. If you didn't annotate, I still think you have more than enough time to go through Pathoma lectures again. If you did annotate, you should have more than enough time to read through Pathoma multiple times. Either way, since it composes so much of what you'll be tested on, I think it's worthwhile to go through it again.