diff --git a/OpenRa.Game/Traits/Activities/Move.cs b/OpenRa.Game/Traits/Activities/Move.cs
index 554447b490..df3b82b6f9 100755
--- a/OpenRa.Game/Traits/Activities/Move.cs
+++ b/OpenRa.Game/Traits/Activities/Move.cs
@@ -107,6 +107,8 @@ namespace OpenRa.Game.Traits.Activities
 		[Conditional( "SANITY_CHECKS")]
 		void SanityCheckPath( Mobile mobile )
 		{
+			if( path.Count == 0 )
+				return;
 			var d = path[path.Count-1] - mobile.toCell;
 			if( d.LengthSquared > 2 )
 				throw new InvalidOperationException( "(Move) Sanity check failed" );
diff --git a/OpenRa.Game/UnitInfluenceMap.cs b/OpenRa.Game/UnitInfluenceMap.cs
index 14bd9933a3..4f4f57f104 100644
--- a/OpenRa.Game/UnitInfluenceMap.cs
+++ b/OpenRa.Game/UnitInfluenceMap.cs
@@ -18,13 +18,13 @@ namespace OpenRa.Game
 
 		public void Tick()
 		{
-			SanityCheck();
+			//SanityCheck();
 
-			var units = Game.world.Actors
-				.Select( a => a.traits.GetOrDefault<Traits.Mobile>() ).Where( m => m != null );
+			//var units = Game.world.Actors
+			//    .Select( a => a.traits.GetOrDefault<Traits.Mobile>() ).Where( m => m != null );
 
-			foreach (var u in units)
-				Update(u);
+			//foreach (var u in units)
+			//    Update(u);
 
 			SanityCheck();
 		}
diff --git a/OpenRa.Game/UnitOrders.cs b/OpenRa.Game/UnitOrders.cs
index df36cd1574..b46bd07844 100755
--- a/OpenRa.Game/UnitOrders.cs
+++ b/OpenRa.Game/UnitOrders.cs
@@ -99,7 +99,7 @@ namespace OpenRa.Game
 						* ( 25 * 60 ) /* frames per min */				/* todo: build acceleration, if we do that */
 						/ 1000;
 
-					time = .05f * time;						/* temporary hax so we can build stuff fast for test */
+					time = .01f * time;						/* temporary hax so we can build stuff fast for test */
 
 					order.Player.BeginProduction(group,
 						new ProductionItem(order.TargetString, (int)time, ui.Cost,