I don’t know if there is a similar Windows tool, but I would try to check iotop to see the disk usage and all processes using IO operations (or are you already seeing the processes in the task manager and are sure that Python is indeed using the SSD)?
I’m not using Windows for real workloads, but have seen a high SSD usage in the past whenever Windows thought about updates performed in the background, which also decreased the overall performance massively without a warning.