You would think that, wouldn't you? But every time I've worked on a Python code base I have torn out Pandas and replaced it with simple procedural code, getting

You would think that, wouldn't you? But every time I've worked on a Python code base I have torn out Pandas and replaced it with simple procedural code, getting at least an order of magnitude. Pandas is spectacularly slow. I don't understand how or why, but it is.