Core enwp finder nonperformant

SQL

SET @ARTICLE_SPACE = 0;
SET @START_TITLE = 'Philosophy';
SET @START_PAGEID=13692155;

# this finds articles N links away from START_TITLE
select p1.page_title as 'page_1', p2.page_title as 'page_2'
from page as p1
join page as p2
  on p2.page_title in (select pl_title from pagelinks where pl_namespace=@ARTICLE_SPACE and pl_from=p1.page_id) 
where p1.page_title in (select pl_title from pagelinks where pl_namespace=@ARTICLE_SPACE and pl_from=@START_PAGEID) 
  and @START_PAGEID != p1.page_id
  and @START_PAGEID != p2.page_id
  and p1.page_id != p2.page_id

limit 250;
SQL

Checking query status...
