diff --git a/Difficult_Rocket/client/__init__.py b/Difficult_Rocket/client/__init__.py
index 06ce3aa..fc38d66 100644
--- a/Difficult_Rocket/client/__init__.py
+++ b/Difficult_Rocket/client/__init__.py
@@ -215,7 +215,7 @@ class ClientWindow(Window):
     def read_input(self):
         self.logger.debug('read_input start')
         while self.run_input:
-            get = input()
+            get = input(">")
             if get in ('', ' ', '\n', '\r'):
                 continue
             if get == 'stop':
@@ -287,6 +287,7 @@ class ClientWindow(Window):
 
     @_call_screen_after
     def on_command(self, command: line.CommandText):
+        print(command.re_match('/'))
         self.logger.info(tr().window.command.text().format(command))
         if command.re_match('stop'):
             # self.dispatch_event('on_exit')
diff --git a/Difficult_Rocket/command/api.py b/Difficult_Rocket/command/api.py
index 6521db8..dec8467 100644
--- a/Difficult_Rocket/command/api.py
+++ b/Difficult_Rocket/command/api.py
@@ -17,7 +17,7 @@ import re
 from typing import Union, Optional, Type, Tuple, List
 
 # DR
-from Difficult_Rocket.exception.command import *
+# from Difficult_Rocket.exception.command import *
 
 search_re = re.compile(r'(?<!\\)"')
 
diff --git a/Difficult_Rocket/main.py b/Difficult_Rocket/main.py
index f64bdb0..873a582 100644
--- a/Difficult_Rocket/main.py
+++ b/Difficult_Rocket/main.py
@@ -73,7 +73,7 @@ class Game:
         self.server.run()
         if DR_option.use_multiprocess:
             try:
-                game_process = multiprocessing.Process(target=self.client.start(), name='pyglet app')
+                game_process = multiprocessing.Process(target=self.client.start, name='pyglet app')
                 game_process.start()
                 game_process.join()
             except Exception:
diff --git a/libs/Difficult_Rocket_rs/src/Cargo.toml b/libs/Difficult_Rocket_rs/src/Cargo.toml
index 400e747..de91553 100644
--- a/libs/Difficult_Rocket_rs/src/Cargo.toml
+++ b/libs/Difficult_Rocket_rs/src/Cargo.toml
@@ -14,6 +14,9 @@ crate-type = ["cdylib"]
 [profile.dev.package.rapier2d-f64]
 opt-level = 3
 
+[profile.release]
+codegen-units = 1
+
 [dependencies.rapier2d-f64]
 version = "0.17.1"
 features = ["simd-stable"]