Tune down number of channels for qps_test
diff --git a/test/cpp/qps/qps_test.cc b/test/cpp/qps/qps_test.cc
index 7b93443..ba980a6 100644
--- a/test/cpp/qps/qps_test.cc
+++ b/test/cpp/qps/qps_test.cc
@@ -53,8 +53,8 @@
   ClientConfig client_config;
   client_config.set_client_type(ASYNC_CLIENT);
   client_config.set_enable_ssl(false);
-  client_config.set_outstanding_rpcs_per_channel(10);
-  client_config.set_client_channels(800);
+  client_config.set_outstanding_rpcs_per_channel(1000);
+  client_config.set_client_channels(8);
   client_config.set_payload_size(1);
   client_config.set_async_client_threads(8);
   client_config.set_rpc_type(UNARY);