gVim (only on windows/linux) with a minimal config is my preferred. Fast but a few powerful built-in vim features like search, replace, syntax highlighting, spellchecking, auto-indent etc. It loads in about 1.5s on my machine and renders the text nicely.
MacVim is a great compromise between vim and standard Mac behaviour (like mapping the standard app shortcuts everyone expects). They keep their bundled vim version updated pretty well too. I haven't got any complaints about it (though I do still tend to run vim in the terminal out of habit), like I do with gVim on Windows.
Maybe take a look at https://github.com/macvim-dev/macvim on mac, perhaps someone can comment about the state of macvim?