Again and again, the most important question is "why?" not "how?". Python isn't made to be fast. If you wanted a language that can go fast, you needed to build it into the language from the start: give developers tools to manage memory layout, give developers tools to manage execution flow, hint the compiler about situations that present potential for optimization, restrict dispatch and polymorphism, restrict semantics to fewer interpretations.

Python has none of that. It's a hyper-bloated language with extremely poor design choices all around. Many ways of doing the same thing, many ways of doing stupid things, no way of communicating programmer's intention to the compiler... So why even bother? Why not use a language that's designed by a sensible designer for this specific purpose?

The news about performance improvements in Python just sound to me like spending useful resources on useless goals. We aren't going forward by making Python slightly faster and slightly more bloated, we just make this bad language even harder to get rid of.