diff --git a/.idea/misc.xml b/.idea/misc.xml
index 01702b5..4bba91c 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -3,5 +3,5 @@
   <component name="Black">
     <option name="sdkName" value="Python 3.13 (winConnect)" />
   </component>
-  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.13 (winConnect)" project-jdk-type="Python SDK" />
+  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.12 (winConnect)" project-jdk-type="Python SDK" />
 </project>
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
index 5ff7d01..c305067 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 # python 3.13
 # 12.03.2025
-pywin32==309
-ormsgpack==1.8.0
-pycryptodome==3.21.0
\ No newline at end of file
+pywin32~=309
+ormsgpack~=1.8.0
+pycryptodome~=3.21.0
\ No newline at end of file
diff --git a/winConnect/WinConnectBase.py b/winConnect/WinConnectBase.py
index e3f1614..cd4d9fe 100644
--- a/winConnect/WinConnectBase.py
+++ b/winConnect/WinConnectBase.py
@@ -1,5 +1,5 @@
 import hashlib
-import json
+import orjson
 import logging
 import struct
 import threading
@@ -274,7 +274,7 @@ class WinConnectBase:
                 _blank_settings['header_format'] = self._header_format
                 _blank_settings['max_buffer'] = self.read_max_buffer
                 _blank_settings['crypto'] = self.__crypto.crypt_name
-                session_settings = f"set_session_settings:{len(self.__crypto.crypt_salt)}:{json.dumps(_blank_settings)}".encode(self.encoding) + self.__crypto.crypt_salt
+                session_settings = f"set_session_settings:{len(self.__crypto.crypt_salt)}:".encode(self.encoding) + orjson.dumps(_blank_settings) + self.__crypto.crypt_salt
                 self._send_message("cmd", session_settings)
                 return True
             case b'set_session_settings':
@@ -291,8 +291,8 @@ class WinConnectBase:
                     self.__crypto.set_salt(salt)
 
                 try:
-                    settings = json.loads(data.decode(self.init_encoding))
-                except json.JSONDecodeError as e:
+                    settings = orjson.loads(data.decode(self.init_encoding))
+                except orjson.JSONDecodeError as e:
                     self._send_error(WinConnectErrors.BAD_DATA, f"JSONDecodeError: {e}")
                     return self.close()
 
diff --git a/winConnect/WinConnectDaemon.py b/winConnect/WinConnectDaemon.py
index c974a74..d959956 100644
--- a/winConnect/WinConnectDaemon.py
+++ b/winConnect/WinConnectDaemon.py
@@ -1,7 +1,6 @@
 import win32pipe
 
 from .WinConnectBase import WinConnectBase
-from .crypto import WinConnectCrypto
 
 
 class WinConnectDaemon(WinConnectBase):
diff --git a/winConnect/crypto/crypto_classes.py b/winConnect/crypto/crypto_classes.py
index 6b552f5..6788f52 100644
--- a/winConnect/crypto/crypto_classes.py
+++ b/winConnect/crypto/crypto_classes.py
@@ -1,9 +1,8 @@
 import os
 import random
-from pathlib import Path
 
-from .crypto_class_base import WinConnectCryptoBase
 from winConnect.exceptions import WinConnectCryptoSimpleBadHeaderException
+from .crypto_class_base import WinConnectCryptoBase
 
 _pip_crypto = True
 try: