[oconnor663]

No but this is a common misconception. The key thing to remember is that a regular hash function and a "password hash" are very different. A password hash does need to be slow, because we want to make it expensive for an attacker who's stolen the hash to try to guess the password. But in most other use cases, we want hash functions to be as fast as possible, as long as they can uphold their security guarantees.

A maybe-interesting sidebar: If your job is to design a password hash, you still want to take a fast hash function as a starting point. All the effort that goes into making the hash function both fast and secure gives you confidence that an attacker isn't going to be able to find some shortcut that lets them compute the hash it more quickly than everyone else.