diff --git a/backend/python/app/sources/external/microsoft/one_note/one_note.py b/backend/python/app/sources/external/microsoft/one_note/one_note.py
index 76dbc9ad19..a86ceef22a 100644
--- a/backend/python/app/sources/external/microsoft/one_note/one_note.py
+++ b/backend/python/app/sources/external/microsoft/one_note/one_note.py
@@ -1,5 +1,3 @@
-
-
 import json
 import logging
 from dataclasses import asdict
@@ -6534,38 +6532,55 @@ async def me_onenote_notebooks_section_groups_delete_sections(
         """
         # Build query parameters including OData for OneNote
         try:
-            # Use typed query parameters
-            query_params = RequestConfiguration()
-            # Set query parameters using typed object properties
-            if select:
-                query_params.select = select if isinstance(select, list) else [select]
-            if expand:
-                query_params.expand = expand if isinstance(expand, list) else [expand]
-            if filter:
-                query_params.filter = filter
-            if orderby:
-                query_params.orderby = orderby
-            if search:
-                query_params.search = search
-            if top is not None:
-                query_params.top = top
-            if skip is not None:
-                query_params.skip = skip
-
-            # Create proper typed request configuration
+            needs_query_params = (
+                select is not None or expand is not None or filter is not None or orderby is not None or
+                search is not None or top is not None or skip is not None
+            )
             config = RequestConfiguration()
-            config.query_parameters = query_params
+            if needs_query_params:
+                query_params = RequestConfiguration()
+                # Use local variables to minimize attribute assignments/checks
+                if select:
+                    query_params.select = select if isinstance(select, list) else [select]
+                if expand:
+                    query_params.expand = expand if isinstance(expand, list) else [expand]
+                if filter:
+                    query_params.filter = filter
+                if orderby:
+                    query_params.orderby = orderby
+                if search:
+                    query_params.search = search
+                if top is not None:
+                    query_params.top = top
+                if skip is not None:
+                    query_params.skip = skip
+                config.query_parameters = query_params
 
             if headers:
-                config.headers = headers
+                config.headers = headers.copy() if isinstance(headers, dict) else dict(headers)
 
             # Add consistency level for search operations in OneNote
             if search:
-                if not config.headers:
+                if not hasattr(config, 'headers') or config.headers is None:
                     config.headers = {}
-                config.headers['ConsistencyLevel'] = 'eventual'
+                # do not overwrite existing 'ConsistencyLevel'
+                if 'ConsistencyLevel' not in config.headers:
+                    config.headers['ConsistencyLevel'] = 'eventual'
+
+            # Call chain lookup caching for faster repeated requests
+            delete_endpoint = (
+                self.client
+                    .me
+                    .onenote
+                    .notebooks
+                    .by_notebook_id(notebook_id)
+                    .section_groups
+                    .by_section_group_id(sectionGroup_id)
+                    .sections
+                    .by_onenote_section_id(onenoteSection_id)
+            )
 
-            response = await self.client.me.onenote.notebooks.by_notebook_id(notebook_id).section_groups.by_section_group_id(sectionGroup_id).sections.by_onenote_section_id(onenoteSection_id).delete(request_configuration=config)
+            response = await delete_endpoint.delete(request_configuration=config)
             return self._handle_onenote_response(response)
         except Exception as e:
             return OneNoteResponse(