I don't know the problem space and I'm sure that the language-agnostic algorithmic improvements are massive. But to me, there's just something about rust that promotes fast code. It's easy to avoid copies and pointer-chasing, for example. In python, you never have any idea when you're copying, when you're chasing a pointer, when you're allocating, and so on. (Or maybe you do, but I certainly don't.) You're so far from hardware that you start thinking more abstractly and not worrying about performance. For some things, that's probably perfect. But for writing fast code, it's not the right mindset.