Doing a exact string match on 200-ish rows in 80 seconds on a modern computer is so inefficient that I have a hard time seeing any less complex but useful opera

Doing a exact string match on 200-ish rows in 80 seconds on a modern computer is so inefficient that I have a hard time seeing any less complex but useful operations whatsoever. Perhaps I'm just not clever enough, but for now homomorphic encryption seems like it isn't useful for common, real world usecases to me.