Lower bound of the server tick rate
How often per second the server computes at minimum.
scum.MinServerTickRate=5
What does this setting do?
The tick rate is the server's heartbeat: how many times per second it recalculates the game state. Under heavy load it may drop as far as this value.
The default of 5 sounds low but is deliberate: under overload the server should slow down rather than crash. Raise the lower bound and you remove that escape route — it then tries to hold a rate it cannot manage and responds with stutter and disconnects instead of smooth slowdown.
Raising this value does not make a server faster. For smoother play you have to reduce load: fewer vehicles, fewer loose items, fewer simultaneous enemies.
Which value suits my server?
Keep 5 (default).
Keep 5.
Keep 5.
What to watch out for
Under overload the server cannot deliver the demanded rate and produces hitches instead. The lower bound is a safety net, not a performance dial.