diff --git a/UAssetAPI.Benchmark/Program.cs b/UAssetAPI.Benchmark/Program.cs
index 7f11b0ba..d9133c40 100644
--- a/UAssetAPI.Benchmark/Program.cs
+++ b/UAssetAPI.Benchmark/Program.cs
@@ -103,7 +103,9 @@ public static void Run(string[] args)
                         if (Path.GetExtension(assetPath) == ".usmap")
                         {
                             timer.Start();
-                            mappings = new Usmap(assetPath);
+                            mappings = new Usmap();
+                            mappings.SkipBlueprintSchemas = true;
+                            mappings.Read(mappings.PathToReader(assetPath));
                             timer.Stop();
                             Console.WriteLine("Mappings parsed in " + NumberToTwoDecimalPlaces(timer.Elapsed.TotalMilliseconds) + " ms");
                             break;
diff --git a/UAssetAPI/Unversioned/Usmap.cs b/UAssetAPI/Unversioned/Usmap.cs
index 5e5409df..5b277d10 100644
--- a/UAssetAPI/Unversioned/Usmap.cs
+++ b/UAssetAPI/Unversioned/Usmap.cs
@@ -344,6 +344,11 @@ public bool AreFNamesCaseInsensitive
             }
         }
 
+        /// <summary>
+        /// Whether or not to skip blueprint schemas serialized in this mappings file. Only useful for testing.
+        /// </summary>
+        public bool SkipBlueprintSchemas = false;
+
         /// <summary>
         /// .usmap name map
         /// </summary>
@@ -612,7 +617,7 @@ public bool TryGetPropertyData<T>(FName propertyName, AncestryInfo ancestry, Unr
         /// </summary>
         /// <param name="p">The path to the input file.</param>
         /// <returns>A new MemoryStream that stores the binary data of the input file.</returns>
-        public MemoryStream PathToStream(string p)
+        public static MemoryStream PathToStream(string p)
         {
             using (FileStream origStream = File.Open(p, FileMode.Open))
             {
@@ -802,6 +807,11 @@ public void Read(UsmapBinaryReader compressedReader)
                     }
                 }
 
+                if (SkipBlueprintSchemas && schemaName.Length >= 2 && schemaName.EndsWith("_C"))
+                {
+                    continue;
+                }
+
                 var newSchema = new UsmapSchema(schemaName, schemaSuperName, numProps, props);
                 schemaIndexMap[i] = newSchema;
                 Schemas[schemaName] = newSchema;
@@ -943,9 +953,9 @@ public Usmap(string path)
         }
 
         /// <summary>
-        /// Reads a .usmap file from a BinaryReader and initializes a new instance of the <see cref="Usmap"/> class to store its data in memory.
+        /// Reads a .usmap file from a UsmapBinaryReader and initializes a new instance of the <see cref="Usmap"/> class to store its data in memory.
         /// </summary>
-        /// <param name="reader">The file's BinaryReader that this instance will read from.</param>
+        /// <param name="reader">The file's UsmapBinaryReader that this instance will read from.</param>
         /// <exception cref="FormatException">Throw when the asset cannot be parsed correctly.</exception>
         public Usmap(UsmapBinaryReader reader)
         {