diff --git a/test/cpp/ext/otel/otel_plugin_test.cc b/test/cpp/ext/otel/otel_plugin_test.cc
index 863181f2d34..cbc9b18fc42 100644
--- a/test/cpp/ext/otel/otel_plugin_test.cc
+++ b/test/cpp/ext/otel/otel_plugin_test.cc
@@ -1919,7 +1919,7 @@ TEST_F(OpenTelemetryPluginCallbackMetricsTest,
         reporter.Report(double_gauge_handle, double_value_1++, kLabelValuesSet2,
                         kOptionalLabelValuesSet2);
       },
-      grpc_core::Duration::Milliseconds(10) * grpc_test_slowdown_factor(),
+      grpc_core::Duration::Milliseconds(50) * grpc_test_slowdown_factor(),
       integer_gauge_handle, double_gauge_handle);
   int report_count_2 = 0;
   int64_t int_value_2 = 1;
@@ -1936,9 +1936,9 @@ TEST_F(OpenTelemetryPluginCallbackMetricsTest,
         reporter.Report(double_gauge_handle, double_value_2++, kLabelValuesSet2,
                         kOptionalLabelValuesSet2);
       },
-      grpc_core::Duration::Milliseconds(10) * grpc_test_slowdown_factor(),
+      grpc_core::Duration::Milliseconds(50) * grpc_test_slowdown_factor(),
       integer_gauge_handle, double_gauge_handle);
-  constexpr int kIterations = 100;
+  constexpr int kIterations = 50;
   MetricsCollectorThread collector{
       this,
       grpc_core::Duration::Milliseconds(100) * grpc_test_slowdown_factor(),