diff --git a/kytos/core/api_server.py b/kytos/core/api_server.py
index 9a430ccd..0f7a41db 100644
--- a/kytos/core/api_server.py
+++ b/kytos/core/api_server.py
@@ -62,7 +62,7 @@ def __init__(self, listen='0.0.0.0', port=8181,
         )
         kytos_conf = KytosConfig().options["daemon"]
 
-        api_threadpool_size = get_thread_pool_max_workers().get('api', 160)
+        api_threadpool_size = get_thread_pool_max_workers().get('api', 512)
 
         concurrency_limit = kytos_conf.api_concurrency_limit
         if concurrency_limit == 'threadpool':