diff --git a/tests/robustness/traffic/traffic.go b/tests/robustness/traffic/traffic.go
index 92d7a5c6697..7f861096343 100644
--- a/tests/robustness/traffic/traffic.go
+++ b/tests/robustness/traffic/traffic.go
@@ -45,7 +45,7 @@ var (
 	HighTrafficProfile = Profile{
 		MinimalQPS:                     200,
 		MaximalQPS:                     1000,
-		ClientCount:                    12,
+		ClientCount:                    10,
 		MaxNonUniqueRequestConcurrency: 3,
 	}
 )