Neovim with init.lua is faster

We all know how hard it would be to create a separate neovim exclusive config, but the speed it brings is huge.
Neovim now has native Language Server support, treesiter for better syntax.

There is a thread on Reddit on how much faster/or better using init.lua could be:
https://www.reddit.com/r/neovim/comments/jfs5sb/initvim_to_initlua_any_advantages/

Personally, I am using a plugin that caches lua plugins, which already are faster than pure vim:

use {'lewis6991/impatient.nvim', rocks = 'mpack'} -- faster startup

The plugin manager is packer (written in lua)

Even it took a long time to implement, this solution would be great