Index: binaries/data/mods/public/simulation/components/Formation.js
===================================================================
--- binaries/data/mods/public/simulation/components/Formation.js
+++ binaries/data/mods/public/simulation/components/Formation.js
@@ -916,8 +916,10 @@
 	minSpeed *= this.GetSpeedMultiplier();
 
 	let cmpUnitMotion = Engine.QueryInterface(this.entity, IID_UnitMotion);
-	cmpUnitMotion.SetSpeedMultiplier(minSpeed / cmpUnitMotion.GetWalkSpeed());
-	cmpUnitMotion.SetAcceleration(minAcceleration);
+	const currentAcceleration = cmpUnitMotion.GetAcceleration();
+	const currentSpeed = cmpUnitMotion.GetCurrentSpeed();
+	cmpUnitMotion.SetSpeedMultiplier(Math.max(minSpeed / cmpUnitMotion.GetWalkSpeed(), currentSpeed));
+	cmpUnitMotion.SetAcceleration(Math.max(minAcceleration, currentAcceleration));
 };
 
 Formation.prototype.ShapeUpdate = function()