SELECT 
  * 
FROM 
  cscart_homeProduct 
WHERE 
  category_id IN (
    '2', '3', '4', '5', '6', '7', '72', '90', 
    '92'
  )

Query time 0.00059

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "4.06"
    },
    "table": {
      "table_name": "cscart_homeProduct",
      "access_type": "range",
      "possible_keys": [
        "PRIMARY"
      ],
      "key": "PRIMARY",
      "used_key_parts": [
        "category_id"
      ],
      "key_length": "2",
      "rows_examined_per_scan": 9,
      "rows_produced_per_join": 9,
      "filtered": "100.00",
      "cost_info": {
        "read_cost": "3.16",
        "eval_cost": "0.90",
        "prefix_cost": "4.06",
        "data_read_per_join": "16K"
      },
      "used_columns": [
        "category_id",
        "product_id",
        "company_id",
        "name",
        "company",
        "img",
        "url",
        "timestamp"
      ],
      "attached_condition": "(`cscartdb`.`cscart_homeProduct`.`category_id` in ('2','3','4','5','6','7','72','90','92'))"
    }
  }
}