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 (
    164, 165, 167, 168, 169, 170, 171, 172, 
    173, 174, 175, 176, 177, 178, 179, 181, 
    182, 183, 184, 185, 186, 187, 188, 189, 
    190, 191, 1, 5, 7, 8, 9, 10
  )

Query time 0.00047

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "157.78"
    },
    "nested_loop": [
      {
        "table": {
          "table_name": "p",
          "access_type": "ALL",
          "possible_keys": [
            "PRIMARY",
            "idx_group_id"
          ],
          "rows_examined_per_scan": 120,
          "rows_produced_per_join": 33,
          "filtered": "27.50",
          "cost_info": {
            "read_cost": "19.76",
            "eval_cost": "6.60",
            "prefix_cost": "26.36",
            "data_read_per_join": "528"
          },
          "used_columns": [
            "product_id",
            "parent_product_id",
            "group_id"
          ],
          "attached_condition": "(`atulecarter_atul_demo2`.`p`.`product_id` in (164,165,167,168,169,170,171,172,173,174,175,176,177,178,179,181,182,183,184,185,186,187,188,189,190,191,1,5,7,8,9,10))"
        }
      },
      {
        "table": {
          "table_name": "g",
          "access_type": "eq_ref",
          "possible_keys": [
            "PRIMARY"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "id"
          ],
          "key_length": "3",
          "ref": [
            "atulecarter_atul_demo2.p.group_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 33,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "33.00",
            "eval_cost": "6.60",
            "prefix_cost": "65.96",
            "data_read_per_join": "12K"
          },
          "used_columns": [
            "id",
            "code"
          ]
        }
      },
      {
        "table": {
          "table_name": "f",
          "access_type": "ref",
          "possible_keys": [
            "idx_group_id"
          ],
          "key": "idx_group_id",
          "used_key_parts": [
            "group_id"
          ],
          "key_length": "3",
          "ref": [
            "atulecarter_atul_demo2.p.group_id"
          ],
          "rows_examined_per_scan": 3,
          "rows_produced_per_join": 112,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "69.30",
            "eval_cost": "22.52",
            "prefix_cost": "157.78",
            "data_read_per_join": "11K"
          },
          "used_columns": [
            "feature_id",
            "purpose",
            "group_id"
          ]
        }
      }
    ]
  }
}