I mean it's not really like humans are good at math either, we are good at making abstractions and following linear rules but we are slow and fallible. Digital computation is just near absolute the best method for doing math. LLMs are decent abstraction and general problem solving tho. They are not as creative as people but they are still pretty good! It's a step on the right direction for true agi. Honestly even when we have agi I doubt they will ever beat raw cpus in computation speed.