alt Hacker NewsPrezto is faster than OMZ, and has been for over a decade. Starship is faster still. I switched from using Prezto standalone to using Prezto + Starship and relying primarily on Starship several years ago. I'd be surprised if many people are still using Oh My ZSH in 2026 vs using Prezto, anyway.
zsh4humans is even faster than Prezto, according to their benchmarks. that’s what I’m using daily.