there are 15M nodes and 150M relations in the db, i run the following 
cypher and it takes more than 200 secondes to get the result. machine 
cpu&memory is low. what should i do to improve? I'd appreciate some advise.

cypher:

START me=node:node_auto_index(userId='32887522')

MATCH 
(me)-[:RELATIONSHIP_TYPE_FRIEND]-(people)-[:RELATIONSHIP_TYPE_FRIEND]-(fof)

RETURN fof,count(*) AS commonFriends

ORDER BY commonFriends DESC

LIMIT 100;

and get the excute plan:

ColumnFilter(symKeys=["fof", " 
INTERNAL_AGGREGATEeaff758c-8eda-498a-9366-9965f62d16fc"], 
returnItemNames=["fof", "commonFriends"], _rows=100, _db_hits=0)

==> Top(orderBy=["SortItem(Cached( 
INTERNAL_AGGREGATEeaff758c-8eda-498a-9366-9965f62d16fc of type 
Long),false)"], limit="Literal", _rows=100, _db_hits=0)

==> EagerAggregation(keys=["fof"], aggregates=["( 
INTERNAL_AGGREGATEeaff758c-8eda-498a-9366-9965f62d16fc,CountStar)"], 
_rows=3661, _db_hits=0)

==> TraversalMatcher(trail="(me)-[ UNNAMED62:RELATIONSHIP_TYPE_FRIEND WHERE 
true AND true]-(people)-[ UNNAMED99:RELATIONSHIP_TYPE_FRIEND WHERE true AND 
true]-(fof)", _rows=15470, _db_hits=15547)

==> ParameterPipe(_rows=1, _db_hits=0)

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