diff --git a/backend/proxy/proxy.cpp b/backend/proxy/proxy.cpp
index 4ccc02a..b9d24e5 100644
--- a/backend/proxy/proxy.cpp
+++ b/backend/proxy/proxy.cpp
@@ -17,7 +17,7 @@
 //#define MULTI_THREAD
 //#define DEBUG
 //#define DEBUG_PACKET
-
+//#define THREAD_NUM
 using namespace std;
 
 boost::asio::io_service *ios_loop = nullptr;
@@ -459,7 +459,11 @@ int main(int argc, char* argv[])
       acceptor.accept_connections();
       #ifdef MULTI_THREAD
       boost::thread_group tg;
+      #ifdef THREAD_NUM
+      for (unsigned i = 0; i < THREAD_NUM; ++i)
+      #else
       for (unsigned i = 0; i < thread::hardware_concurrency(); ++i)
+      #endif
          tg.create_thread(boost::bind(&boost::asio::io_service::run, &ios));
 
       tg.join_all();
diff --git a/start.py b/start.py
index 30ecd53..50dc51c 100755
--- a/start.py
+++ b/start.py
@@ -23,6 +23,8 @@ parser = argparse.ArgumentParser()
 parser.add_argument('--port', "-p", type=int, required=False, help='Port where open the web service of the firewall', default=4444)
 parser.add_argument('--no-autostart', "-n", required=False, action="store_true", help='Auto-execute "docker-compose up -d --build"', default=False)
 parser.add_argument('--single-thread', "-s", required=False, action="store_true", help='Disable multi-threaded proxy"', default=False)
+parser.add_argument('--thread-num', "-t", type=int, required=False, help='Number of threads to use', default=None)
+
 args = parser.parse_args()
 sep()
 puts(f"Firegex", color=colors.yellow, end="")
@@ -31,6 +33,8 @@ puts(f"{args.port}", color=colors.cyan)
 
 os.chdir(os.path.dirname(os.path.realpath(__file__)))
 
+gcc_params = "-D MULTI_THREAD" if not args.single_thread else ""
+gcc_params+= f" -D THREAD_NUM={args.thread_num}" if args.thread_num else ""
 with open("docker-compose.yml","wt") as compose:
 
     if "linux" in sys.platform and not 'microsoft-standard' in platform.uname().release: #Check if not is a wsl also
@@ -43,7 +47,7 @@ services:
         build: 
             context: .
             args:
-                - GCC_PARAMS={"-D MULTI_THREAD" if not args.single_thread else ""}
+                - GCC_PARAMS={gcc_params}
         network_mode: "host"
         environment:
             - NGINX_PORT={args.port}
@@ -64,7 +68,7 @@ services:
         build: 
             context: .
             args:
-                - GCC_PARAMS={"-D MULTI_THREAD" if not args.single_thread else ""}
+                - GCC_PARAMS={gcc_params}
         ports:
             - {args.port}:{args.port}
         environment: