diff --git a/isometric-park-fna/FNAGame.cs b/isometric-park-fna/FNAGame.cs
--- a/isometric-park-fna/FNAGame.cs
+++ b/isometric-park-fna/FNAGame.cs
@@ -70,7 +70,8 @@
     TimeSpan worldUpdateTime = TimeSpan.Zero;
     TimeSpan simulationUpdateTime = TimeSpan.Zero;
 
-    List<float> past_fps = new List<float>(100);
+    Queue<float> past_fps = new Queue<float>(100);
+    List<float> past_fps_sorted = new List<float>(100);
     // Queue<TimeSpan> past_draw = new Queue<TimeSpan>(100);
     List<float> past_draw_millis = new List<float>(100);
     int tilesDrawn = 0;
@@ -1003,9 +1004,9 @@
         {
             past_draw_millis.Add((float)this.drawTime.TotalMilliseconds);
             past_draw_millis.Sort();
-            past_fps.Add(this.frameRate);
-            past_fps.Sort();
-
+            past_fps.Enqueue(this.frameRate);
+            past_fps_sorted.Add(this.frameRate);
+            past_fps_sorted.Sort();
 
             /*
                if (this.frameRate > 60.0)
@@ -1079,8 +1080,8 @@
         additionalInfo.Add("Dialog entries", entries);
         additionalInfo.Add("Metadata entries", descriptions);
 
-        if ((past_fps.Count() > 5) && show_another_window) {
-            var past_fps_floats = past_fps.ToArray();
+        if ((past_fps_sorted.Count() > 5) && show_another_window) {
+            var past_fps_floats = past_fps_sorted.ToArray();
             additionalInfo.Add(".01%% fps", MathUtils.Percentile(past_fps_floats, 0.0001f).ToString());
             additionalInfo.Add(".1%% fps", MathUtils.Percentile(past_fps_floats, 0.001f).ToString());
             additionalInfo.Add("1%% fps", MathUtils.Percentile(past_fps_floats, 0.01f).ToString());
diff --git a/isometric-park-fna/Simulation.cs b/isometric-park-fna/Simulation.cs
--- a/isometric-park-fna/Simulation.cs
+++ b/isometric-park-fna/Simulation.cs
@@ -56,7 +56,6 @@
             }
         }
 
-
         private const float SPONTANEOUS_NEW_TREE_CHANCE = 0.9995f;
         private const float NEIGHBOR_NEW_TREE_CHANCE = 0.995f;
         private const float NEIGHBOR_CROWDS_TREE_CHANCE = 0.995f;
@@ -133,14 +132,12 @@
             {
                 if (this.budgets.Count >= 2) {
                     return this.budgets[this.budgets.Count - 2];
-
                 }
                 else
                 {
                     return new Budget { };
                 }
             }
-
         }
 
         public System.Collections.Generic.IEnumerable<Budget> allBudgets()
@@ -215,7 +212,6 @@
         {
             get {
                 return this.map.iterate_cells_with_neighbors(7).Where(c => c.HasTree).Count();
-
             }
         }
 
@@ -375,12 +371,10 @@
 
         public Budget applyBudget(Budget budget)
         {
-
             this.money = budget.money
                          - (budget.upkeep + budget.tree_planting + budget.tree_clearing + budget.enforcement)
                          + (budget.subsidy + budget.contracts + budget.misc);
 
-
             budget.final_money = this.money;
             budget.cashflow = budget.final_money - budget.money;