diff --git a/core/admin/start.py b/core/admin/start.py
index 2c925e01..0eff3bbe 100755
--- a/core/admin/start.py
+++ b/core/admin/start.py
@@ -19,7 +19,8 @@ if account is not None and domain is not None and password is not None:
     os.system("flask mailu admin %s %s '%s' --mode %s" % (account, domain, password, mode))
 
 start_command="".join([
-    "gunicorn -w 4 -b :80 ",
+    "gunicorn --threads ", str(os.cpu_count()),
+    " -b :80 ",
     "--access-logfile - " if (log.root.level<=log.INFO) else "",
     "--error-logfile - ",
     "--preload ",