diff --git a/src/PublicApi/Modules/GregFacilityModule.cs b/src/PublicApi/Modules/GregFacilityModule.cs
index 3d2e40b6..1130059a 100644
--- a/src/PublicApi/Modules/GregFacilityModule.cs
+++ b/src/PublicApi/Modules/GregFacilityModule.cs
@@ -1,11 +1,29 @@
-using UnityEngine;
-
-namespace gregCore.PublicApi.Modules;
-
-public sealed class GregFacilityModule
-{
-    private readonly GregApiContext _ctx;
-    internal GregFacilityModule(GregApiContext ctx) => _ctx = ctx;
-
-    public int GetRackCount() => UnityEngine.Object.FindObjectsOfType<global::Il2Cpp.Rack>().Length;
-}
+using UnityEngine;
+
+namespace gregCore.PublicApi.Modules;
+
+public sealed class GregFacilityModule
+{
+    private readonly GregApiContext _ctx;
+    internal GregFacilityModule(GregApiContext ctx) => _ctx = ctx;
+
+    // Index 2 represents racks in GetNumberOfDevices array (0: servers, 1: switches)
+    private const int DEVICE_INDEX_RACKS = 2;
+
+    public int GetRackCount()
+    {
+        // Optimization: Use O(1) device counts from NetworkMap instead of O(N) FindObjectsOfType
+        var networkMap = global::Il2Cpp.NetworkMap.instance;
+        if (networkMap != null)
+        {
+            var counts = networkMap.GetNumberOfDevices();
+            if (counts != null && counts.Length > DEVICE_INDEX_RACKS)
+            {
+                return counts[DEVICE_INDEX_RACKS];
+            }
+        }
+
+        // Fallback during uninitialized game states
+        return UnityEngine.Object.FindObjectsOfType<global::Il2Cpp.Rack>().Length;
+    }
+}