diff --git a/airflow-core/src/airflow/api_fastapi/core_api/routes/ui/grid.py b/airflow-core/src/airflow/api_fastapi/core_api/routes/ui/grid.py
index c35d621a7ddfd..0c475c985dda5 100644
--- a/airflow-core/src/airflow/api_fastapi/core_api/routes/ui/grid.py
+++ b/airflow-core/src/airflow/api_fastapi/core_api/routes/ui/grid.py
@@ -161,6 +161,9 @@ def get_dag_structure(
 
     serdags = session.scalars(
         select(SerializedDagModel).where(
+            # Even though dag_id is filtered in base_query,
+            # adding this line here can improve the performance of this endpoint
+            SerializedDagModel.dag_id == dag_id,
             SerializedDagModel.id != latest_serdag.id,
             SerializedDagModel.dag_version_id.in_(
                 select(TaskInstance.dag_version_id)