gin: bitmap index scan + bitmap heap scan

gistfile1.txt

citus=> explain analyze SELECT COUNT(*) FROM households_fpd WHERE households_fpd.state_id IN ('13', '45') AND households_fpd.fpd ? 'rc_f736c9d1-008c-42bc-9bd7-04a3862292c0b1041c1c-2532-48f0-9a28-c040af8bde1b';
                                                                            QUERY PLAN
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 Aggregate  (cost=18033.01..18033.02 rows=1 width=8) (actual time=33570.273..33570.273 rows=1 loops=1)
   ->  Bitmap Heap Scan on households_fpd  (cost=1857.74..18022.83 rows=4072 width=0) (actual time=3969.365..33225.859 rows=3928811 loops=1)
         Recheck Cond: ((fpd ? 'rc_f736c9d1-008c-42bc-9bd7-04a3862292c0b1041c1c-2532-48f0-9a28-c040af8bde1b'::text) AND (state_id = ANY ('{13,45}'::text[])))
         Heap Blocks: exact=2206936
         ->  Bitmap Index Scan on mar_8_h63fjjs_fpd_state  (cost=0.00..1856.72 rows=4072 width=0) (actual time=2969.074..2969.074 rows=3971112 loops=1)
               Index Cond: ((fpd ? 'rc_f736c9d1-008c-42bc-9bd7-04a3862292c0b1041c1c-2532-48f0-9a28-c040af8bde1b'::text) AND (state_id = ANY ('{13,45}'::text[])))
 Planning time: 3.996 ms
 Execution time: 33586.012 ms