I apologize for this. And you're right, the audio delay is a big issue. It's the next thing on my list to focus my attention to. I am only one person, and this is the first public release of the early access.
Part of the problem up to this point is that there's a baked-in audio delay of 0.13 seconds. With the current recorder/player, I can't change this value without breaking the entire thing (amateur move, I know). I have to rewrite it from scratch while keeping all its functionality with the rest of the game. It's not impossible, but it does take time. The goal is to have separate user-selectable delays both for the realtime recording, and for the dual-playback.