diff --git a/tools/run_tests/performance/scenario_config.py b/tools/run_tests/performance/scenario_config.py
index ce0808829fd559eb9545df2f7ddedaf8adde67f9..08411bf9a4e2871ba576aed3ad221c25c43c267e 100644
--- a/tools/run_tests/performance/scenario_config.py
+++ b/tools/run_tests/performance/scenario_config.py
@@ -409,6 +409,21 @@ class CSharpLanguage:
         use_generic_payload=True,
         categories=[SMOKETEST, SCALABLE])
 
+    yield _ping_pong_scenario(
+        'csharp_generic_async_streaming_ping_pong_insecure_1MB', rpc_type='STREAMING',
+        client_type='ASYNC_CLIENT', server_type='ASYNC_GENERIC_SERVER',
+        req_size=1024*1024, resp_size=1024*1024,
+        use_generic_payload=True,
+        secure=False,
+        categories=[SMOKETEST, SCALABLE])
+
+    yield _ping_pong_scenario(
+        'csharp_generic_async_streaming_qps_unconstrained_insecure', rpc_type='STREAMING',
+        client_type='ASYNC_CLIENT', server_type='ASYNC_GENERIC_SERVER',
+        unconstrained_client='async', use_generic_payload=True,
+        secure=False,
+        categories=[SMOKETEST, SCALABLE])
+
     yield _ping_pong_scenario(
         'csharp_protobuf_async_streaming_ping_pong', rpc_type='STREAMING',
         client_type='ASYNC_CLIENT', server_type='ASYNC_SERVER')
@@ -469,7 +484,6 @@ class CSharpLanguage:
         req_size=1024*1024, resp_size=1024*1024,
         categories=[SMOKETEST, SCALABLE])
 
-
   def __str__(self):
     return 'csharp'