Optimize listing of logs by changing to bucket by datetime, over which we have an index

data/logs_model/table_logs_model.py

@@ -48,9 +48,11 @@ class TableLogsModel(ActionLogsDataInterface):
                                             ignore=filter_kinds, model=m)
 
       logs, next_page_token = model.modelutil.paginate(logs_query, m,
-                                                       descending=True, page_token=page_token,
+                                                       descending=True,
+                                                       page_token=page_token,
                                                        limit=20,
-                                                       max_page=max_page_count)
+                                                       max_page=max_page_count,
+                                                       sort_field_name='datetime')
       return LogEntriesPage([Log.for_logentry(log) for log in logs], next_page_token)
 
     # First check the LogEntry3 table for the most recent logs, unless we've been expressly told