Many joins optimize

EXPLAIN (ANALYZE)
SELECT
    *
FROM
    (
    SELECT
        t1.*
    FROM
        task31 t1
        LEFT JOIN task35 t5 ON t5.link5 = t1.link1
        LEFT JOIN task36 t6 ON t6.link6 = t1.link1
        LEFT JOIN task310 t10 ON t10.link10 = t1.link1
    ) AS t1
    LEFT JOIN (
        SELECT
            t2.*
        FROM
            task32 t2
            LEFT JOIN task33 t3 ON t3.link3 = t2.link2
            LEFT JOIN task34 t4 ON t4.link4 = t2.link2
            LEFT JOIN task37 t7 ON t7.link7 = t2.link2
            LEFT JOIN task38 t8 ON t8.link8 = t2.link2
            LEFT JOIN task39 t9 ON t9.link9 = t2.link2
    ) AS t2 ON t2.link2 = t1.link1;