how to optimise this sql, its execution is extremely slow.

SELECT
*
FROM
ag_catalog.cypher (
'chunk_entity_relation', $$ MATCH ( n ) OPTIONAL MATCH ( n ) -[ r ]- ( ) WITH n,
COUNT ( r ) AS DEGREE RETURN n,
DEGREE
ORDER BY
DEGREE DESC
LIMIT 1000 $$
) AS ( n agtype, DEGREE agtype );