I've always thought that you get hungry way to quickly in minecraft, and it seems like such a configuration feature would fit the theme of this mod quite well.
Best of luck with the mod regardless.

I came here to ask this same thing, but in reverse. I would like to be able to INCREASE the need for food. There has been no option to increase Exhaustion/Hunger rate since Hunger Overhaul back in 1.12.2. We could really use something for 1.16.5

An exponential model would be quite useful as well (e.g., the more hunger you lose, the slower you lose it, or vice versa)
If that's possible it would be much appreciated.

I also would like a an option to change the hunger tick rate, though for the opposite reason. I'd like to be able to cause the player to get hungry faster, and to have hunger deplete even when they aren't doing anything strenuous.

You are almost never sprinting or getting injured on a skyblock map, and if you are playing in an ultra hard core world you might never see your hunger bar move at all. Simply being able to configure the way hunger drains over time would be very useful for both situations.