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SELECT 
  f.feature_id, 
  f.purpose, 
  p.product_id, 
  p.parent_product_id, 
  g.id, 
  g.code 
FROM 
  cscart_product_variation_group_features AS f 
  INNER JOIN cscart_product_variation_groups AS g ON f.group_id = g.id 
  INNER JOIN cscart_product_variation_group_products AS p ON f.group_id = p.group_id 
WHERE 
  p.product_id IN (
    65260, 65340, 65210, 64553, 65258, 65257, 
    65256, 65255, 65254, 65253, 65252, 
    65251, 65250, 65249, 65248, 65247, 
    65246, 65245, 65244, 65243, 65242, 
    65241, 65240, 65239, 65238, 65237, 
    65236, 65235, 65234, 65233, 65232, 
    65231, 65230, 65229, 65163, 65162, 
    65161, 65160, 65159, 65114
  )

Query time 0.00022

Explain
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	p	ALL	PRIMARY,idx_group_id				376	Using where
1	SIMPLE	g	eq_ref	PRIMARY	PRIMARY	3	toolboxdigitalshop_dev.p.group_id	1
1	SIMPLE	f	ref	idx_group_id	idx_group_id	3	toolboxdigitalshop_dev.p.group_id	7