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 (
    154, 53, 52, 228, 161, 165, 166, 86, 106, 
    105, 247, 101, 33, 32, 163, 244, 212, 
    155, 55, 69, 206, 184, 183, 133, 132, 
    125, 120, 223, 225, 224, 146, 147, 145, 
    117, 219, 222, 220, 221, 113, 157, 68, 
    29, 6, 8, 14, 9, 10, 19, 21, 50, 51, 49, 
    48, 54, 153, 164, 248, 65, 64, 63, 62, 
    66, 140, 141
  )

Query time 0.00045

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "g",
      "access_type": "system",
      "possible_keys": ["PRIMARY"],
      "rows": 1,
      "filtered": 100
    },
    "table": {
      "table_name": "f",
      "access_type": "ref",
      "possible_keys": ["idx_group_id"],
      "key": "idx_group_id",
      "key_length": "3",
      "used_key_parts": ["group_id"],
      "ref": ["const"],
      "rows": 2,
      "filtered": 100
    },
    "block-nl-join": {
      "table": {
        "table_name": "p",
        "access_type": "ALL",
        "possible_keys": ["PRIMARY", "idx_group_id"],
        "rows": 7,
        "filtered": 100,
        "attached_condition": "p.group_id = 10 and p.product_id in (154,53,52,228,161,165,166,86,106,105,247,101,33,32,163,244,212,155,55,69,206,184,183,133,132,125,120,223,225,224,146,147,145,117,219,222,220,221,113,157,68,29,6,8,14,9,10,19,21,50,51,49,48,54,153,164,248,65,64,63,62,66,140,141)"
      },
      "buffer_type": "flat",
      "buffer_size": "1Kb",
      "join_type": "BNL"
    }
  }
}