Server Decay Time Multiplier Slider

I’m trying to increase the decay timer but no matter which direction I put the slider, max timers are around 360 hours. I’m running a private server. I tried resetting the server after each change, as well as trying it in single player and it never changes the hours.

Also I assume when the timers are up, structures still go into decay mode and don’t automatically deconstruct unless a player triggers it correct? Thanks