diff --git a/elastic-ctr/client/demo/elastic_ctr.py b/elastic-ctr/client/demo/elastic_ctr.py
index 936a4446151e8b0cfaac96eaa6bb442a7d267421..87d442c39d8015458467f9d0ad7703724cc67290 100644
--- a/elastic-ctr/client/demo/elastic_ctr.py
+++ b/elastic-ctr/client/demo/elastic_ctr.py
@@ -19,7 +19,7 @@ import os
 
 from elastic_ctr_api import ElasticCTRAPI
 
-BATCH_SIZE = 1
+BATCH_SIZE = 10
 SERVING_IP = "127.0.0.1"
 SLOT_CONF_FILE = "./conf/slot.conf"
 CTR_EMBEDDING_TABLE_SIZE = 100000001