SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    4, 1, 5, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 
    17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 
    27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 
    37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 
    47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 
    57, 58, 59, 60, 62, 63, 64, 65, 67, 68, 
    69, 70, 71, 72, 73, 74, 75, 76, 78, 79, 
    80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 
    90, 91, 92, 93, 94, 95, 96, 97, 100, 101, 
    102, 103, 104
  )

Query time 0.00096

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_products",
      "access_type": "ALL",
      "possible_keys": ["PRIMARY"],
      "rows": 247,
      "filtered": 38.86639786,
      "attached_condition": "cscart_products.product_id in (4,1,5,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,62,63,64,65,67,68,69,70,71,72,73,74,75,76,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,100,101,102,103,104)"
    }
  }
}