phxonrails

I'm in the same situation. Started with Vim. Tried out Spacemacs and loved it. Switched to Doom for the performance gains. Finally, switched back to Vim (Neovim) with Doom-like keybinding; specifically setting leader to Space.

I haven't found anything that comes close to vim's performance as a text editor. In terms of plugins, there are some great ones for Neovim like tpope's rails plugins, coc.nvim, fzf, etc.