@@ -1472,14 +1472,15 @@ def _populate_result_rows_from_columnar(
         online_features_response: GetOnlineFeaturesResponse,
         data: Dict[str, List[Value]],
     ):
+        timestamp = Timestamp()  # Only initialize this timestamp once.
         # Add more values to the existing result rows
         for feature_name, feature_values in data.items():
             online_features_response.metadata.feature_names.val.append(feature_name)
             online_features_response.results.append(
                 GetOnlineFeaturesResponse.FeatureVector(
                     values=feature_values,
                     statuses=[FieldStatus.PRESENT] * len(feature_values),
-                    event_timestamps=[Timestamp()] * len(feature_values),
+                    event_timestamps=[timestamp] * len(feature_values),
                 )
             )