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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 (
    69285, 69284, 69283, 69282, 69281, 69280, 
    69279, 69278, 69277, 69276, 69275, 
    69274, 69273, 69272, 69271, 69270, 
    69269, 69268, 69267, 69266, 69265, 
    69264, 69263, 69262, 69261, 69260, 
    69259, 69258, 69128, 68673, 68672, 
    68671, 68670, 68669, 68668, 69121, 
    68664, 68460, 68380, 68611
  )

Query time 0.00023

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