diff --git a/SpriteFontPlus/src/obj/Debug/net45/.NETFramework,Version=v4.5.AssemblyAttributes.cs b/SpriteFontPlus/src/obj/Debug/net45/.NETFramework,Version=v4.5.AssemblyAttributes.cs
--- a/SpriteFontPlus/src/obj/Debug/net45/.NETFramework,Version=v4.5.AssemblyAttributes.cs
+++ b/SpriteFontPlus/src/obj/Debug/net45/.NETFramework,Version=v4.5.AssemblyAttributes.cs
@@ -1,4 +1,4 @@
 // <autogenerated />
 using System;
 using System.Reflection;
-[assembly: global::System.Runtime.Versioning.TargetFrameworkAttribute(".NETFramework,Version=v4.5", FrameworkDisplayName = ".NET Framework 4.5")]
+// [assembly: global::System.Runtime.Versioning.TargetFrameworkAttribute(".NETFramework,Version=v4.5", FrameworkDisplayName = ".NET Framework 4.5")]
diff --git a/isometric-park-fna/CellMap.cs b/isometric-park-fna/CellMap.cs
--- a/isometric-park-fna/CellMap.cs
+++ b/isometric-park-fna/CellMap.cs
@@ -164,6 +164,45 @@
                 yield return this.cells[x - 1][y+1];
             }
         }
+        
+        public System.Collections.Generic.IEnumerable<(int, int)> iterate_neighbor_cell_locations(int x, int y)
+
+        {
+            //iterates over neighbors (clockwise starting at noon/midnight)
+            if (inBounds(x, y + 1))
+            {
+                yield return (x - 1, y);
+            }
+            if (inBounds(x + 1, y + 1))
+            {
+                yield return (x + 1, y + 1);
+            }
+            if (inBounds(x + 1, y))
+            {
+                yield return (x + 1, y);
+            }
+            if (inBounds(x + 1, y - 1))
+            {
+                yield return (x + 1, y - 1);
+            }
+            if (inBounds(x, y - 1))
+            {
+                yield return (x, y - 1);
+            }
+            if (inBounds(x - 1, y-1))
+            {
+                yield return (x - 1, y-1);
+            }
+            if (inBounds(x - 1, y))
+            {
+                yield return (x - 1, y);
+            }
+            if (inBounds(x - 1, y + 1))
+            {
+                yield return (x - 1, y+1);
+            }
+        }
+
 
         public System.Collections.Generic.IEnumerable<Cell> iterate_neighbors(int x, int y)
         {
diff --git a/isometric-park-fna/Engines/SimulationBridgeEngine.cs b/isometric-park-fna/Engines/SimulationBridgeEngine.cs
--- a/isometric-park-fna/Engines/SimulationBridgeEngine.cs
+++ b/isometric-park-fna/Engines/SimulationBridgeEngine.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Diagnostics;
 using System.Linq;
 using System.Collections.Generic;
 
@@ -72,28 +73,6 @@
 	    
 	    // this.simulation.PreserveCells.Clear();
 
-	    var preserve_cells = new HashSet<isometricparkfna.CellMap.Cell>();
-	    var count = 0;
-
-	    foreach (ref readonly var entity in ReadEntities<PreserveComponent>()) {
-		ref readonly var areaComponent = ref GetComponent<AreaComponent>(entity);
-
-		foreach (var square in areaComponent.squares) {
-			preserve_cells.Add(this.simulation.map.cells[(int)square.X][(int)square.Y]);
-		}
-	    }
-
-	    for (int i = 0; i < this.simulation.PreserveCounts.GetLength(0); i++) {
-		    for (int j = 0; j < this.simulation.PreserveCounts.GetLength(0); j++) {
-			    count = 0;
-			    foreach (var cell in this.simulation.map.iterate_neighbor_cells(i, j)) {
-				    if (preserve_cells.Contains(cell)) {
-					    count++;
-				    }
-			    }
-			    this.simulation.PreserveCounts[i, j]  = count;
-		    }
-	    }
 
             foreach (ref readonly var entity in ReadEntities<BudgetLineComponent>())
             {
@@ -133,6 +112,62 @@
             }
             for (int i = ticksToSend; i > 0; i--)
             {
+
+#region calculate_preserve_cells
+	    var preserve_cells = new HashSet<isometricparkfna.CellMap.Cell>();
+	    var preserve_cell_coordinates = new HashSet<(int, int)>();
+	    var count = 0;
+
+	    Stopwatch iterPreserves = new Stopwatch();
+	    iterPreserves.Start();
+
+	    foreach (ref readonly var entity in ReadEntities<PreserveComponent>()) {
+		ref readonly var areaComponent = ref GetComponent<AreaComponent>(entity);
+
+		foreach (var square in areaComponent.squares) {
+			preserve_cells.Add(this.simulation.map.cells[(int)square.X][(int)square.Y]);
+			preserve_cell_coordinates.Add(((int)square.X, (int)square.Y));
+		}
+	    }
+	    iterPreserves.Stop();
+	    Logging.Info(String.Format("Preserve entities: {0:F3}", iterPreserves.Elapsed.TotalMilliseconds.ToString()));
+
+
+	    Stopwatch iterCells = new Stopwatch();
+	    iterCells.Start();
+
+	    //This takes about 30ms versus the .0002 ms with no preserve. 
+	    //When the map is filled up with preserve, about 35ms and 9ms.
+	    //With a handful of cells, it's more like 0.8ms
+	    /*
+	    for (int j = 0; j < this.simulation.PreserveCounts.GetLength(0); j++) {
+		    for (int k = 0; k < this.simulation.PreserveCounts.GetLength(0); k++) {
+			    count = 0;
+			    foreach (var cell in this.simulation.map.iterate_neighbor_cells(j, k)) {
+				    if (preserve_cells.Contains(cell)) {
+					    count++;
+				    }
+			    }
+			    this.simulation.PreserveCounts[j, k]  = count;
+		    }
+	    }
+	    //*/
+
+	    //*
+	     foreach ((var x, var y) in preserve_cell_coordinates) {
+		    foreach ((var newx, var newy) in this.simulation.map.iterate_neighbor_cell_locations(x, y)) {
+
+			    this.simulation.PreserveCounts[newx, newy]  += 1;
+		    }
+
+	    }
+	    //*/
+	    
+
+	    iterCells.Stop();
+	    Logging.Info(String.Format("Cell loop: {0:F3}", iterCells.Elapsed.TotalMilliseconds.ToString()));
+
+#endregion
                 SendMessage<TickMessage>(new TickMessage { SimulationDateTime = simulation.DateTime });
                 //For now:
                 SendMessage<SpawnContractMessage>(new SpawnContractMessage