For anyone looking to reduce audio input latency I would suggest trying this plugin I made
This adds support for ASIO driver in godot, super cool for anyone with dedicated sounds card.
If anyone tries it, I would be curious how little latency you can get, I got pretty low on a Focusrite USB sounds card, but not sure how low you can possibly get in the best case scenario.
I implemented it in my game JAM Adventures
Let me know if any one wants to try it out I can send keys.
Thanks.