...Instead of slowing down, going around them, pushing them aside, or killing them?
I've noticed a consistent behavior when multiple creatures try to reach a player at the same time, especially in narrow passages or crowded areas.
Instead of going around, killing, or slowing down to match the movement speed of creatures in front, the ones in the back push those ahead directly toward the player.
As a result, the front creatures seem to move faster than their normal speed, as if their movement is being amplified by the pressure from behind rather than constrained by standard collision or pathing rules.
This does not resemble typical blocking or pathfinding adjustments (like waiting, rerouting, or attacking weaker creatures), but rather a stacking movement effect. The situation is strange because the weaker monster could easily be pushed aside.
The attached GIF shows this effect in real time:

Notice how the front snake's movement speed appears higher (right) than its base speed (left)
Attaching slower gif:

I have seen creatures killing others to get through before, but I have never observed them speeding up the ones in front. Why does this happen in this situation?