I don't always want to move quickly (and I don't mean because of in-game stealth or something). Sometimes I would like to slow down either to appreciate scenery

I don't always want to move quickly (and I don't mean because of in-game stealth or something). Sometimes I would like to slow down either to appreciate scenery, engage in role playing, enhance immersion, etc. For example entering a new area in Elden Ring, I rarely wanted to just gallop in but instead would prefer slowly walking and looking around as I go, taking my time. I do agree in most cases it's good to be able to pick the default though. What I'd really enjoy would be movement speed being a configuration setting I can adjust dynamically in real time with a small slider or touch interface (think AirPods Pro volume adjustment via the stem) on the back of the controller.