curl-6 on 03 August 2019
Deus x Machina devs promise that improving the framerate has been one of their "top priorities": good news considering the demo could chug pretty hard.
https://nintendoeverything.com/daemon-x-machina-producer-on-player-feedback-improving-the-frame-rate-visual-style-more/
"A lot of users mentioned that they wanted a better frame rate. When we released that demo, the game was still early in development and had a lot of adjustments that need to be done. So, it was something that we were actively working on, but when we saw the user feedback we made sure to make that one of our top priorities."
Essay Pro