diff --git a/Il2CppDumper/Outputs/StructGenerator.cs b/Il2CppDumper/Outputs/StructGenerator.cs
index dea8d7a..9accd56 100644
--- a/Il2CppDumper/Outputs/StructGenerator.cs
+++ b/Il2CppDumper/Outputs/StructGenerator.cs
@@ -375,7 +375,10 @@ public void WriteScript(string outputDir)
             var jsonOptions = new JsonSerializerOptions() { WriteIndented = true, IncludeFields = true };
             File.WriteAllText(outputDir + "stringliteral.json", JsonSerializer.Serialize(stringLiterals, jsonOptions), new UTF8Encoding(false));
             //写入文件
-            File.WriteAllText(outputDir + "script.json", JsonSerializer.Serialize(json, jsonOptions));
+            using (var stream = new FileStream(outputDir + "script.json",FileMode.Create))
+            {
+                JsonSerializer.Serialize(stream, json, jsonOptions);
+            }
             //il2cpp.h
             for (int i = 0; i < genericClassList.Count; i++)
             {
@@ -428,7 +431,21 @@ public void WriteScript(string outputDir)
             sb.Append(headerStruct);
             sb.Append(arrayClassHeader);
             sb.Append(methodInfoHeader);
-            File.WriteAllText(outputDir + "il2cpp.h", sb.ToString());
+            int bufferSize = 4096;
+            using (StreamWriter writer = new StreamWriter(outputDir + "il2cpp.h", false, Encoding.UTF8, bufferSize))
+            {
+                int index = 0;
+                int length = sb.Length;
+                char[] buffer = new char[bufferSize];
+
+                while (index < length)
+                {
+                    int count = Math.Min(bufferSize, length - index);
+                    sb.CopyTo(index, buffer, 0, count);
+                    writer.Write(buffer, 0, count);
+                    index += count;
+                }
+            }
         }
 
         private void AddMetadataUsageTypeInfo(ScriptJson json, uint index, ulong address)