SELECT 
  sd.param_id, 
  sd.param, 
  cscart_static_data_descriptions.descr, 
  sd.param_2, 
  sd.param_3, 
  sd.param_4, 
  sd.param_5, 
  sd.param_6, 
  sd.status, 
  sd.position, 
  sd.parent_id, 
  sd.id_path, 
  sd.class 
FROM 
  cscart_static_data AS sd 
  LEFT JOIN cscart_static_data_descriptions ON sd.param_id = cscart_static_data_descriptions.param_id 
  AND cscart_static_data_descriptions.lang_code = 'en' 
WHERE 
  sd.section = 'A' 
  AND sd.status = 'A' 
  AND sd.param_5 = '4' 
ORDER BY 
  sd.position

Query time 0.00055

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "33.34"
    },
    "ordering_operation": {
      "using_temporary_table": true,
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "27.00"
      },
      "nested_loop": [
        {
          "table": {
            "table_name": "sd",
            "access_type": "ALL",
            "rows_examined_per_scan": 25,
            "rows_produced_per_join": 0,
            "filtered": "4.00",
            "cost_info": {
              "read_cost": "2.99",
              "eval_cost": "0.10",
              "prefix_cost": "3.09",
              "data_read_per_join": "6K"
            },
            "used_columns": [
              "param_id",
              "param",
              "param_2",
              "param_3",
              "param_4",
              "param_5",
              "param_6",
              "class",
              "section",
              "status",
              "position",
              "parent_id",
              "id_path"
            ],
            "attached_condition": "((`mobikul_delivery_boy_livedemo`.`sd`.`section` = 'A') and (`mobikul_delivery_boy_livedemo`.`sd`.`status` = 'A') and (`mobikul_delivery_boy_livedemo`.`sd`.`param_5` = '4'))"
          }
        },
        {
          "table": {
            "table_name": "cscart_static_data_descriptions",
            "access_type": "ALL",
            "rows_examined_per_scan": 27,
            "rows_produced_per_join": 26,
            "filtered": "100.00",
            "using_join_buffer": "hash join",
            "cost_info": {
              "read_cost": "0.55",
              "eval_cost": "2.70",
              "prefix_cost": "6.34",
              "data_read_per_join": "20K"
            },
            "used_columns": [
              "param_id",
              "lang_code",
              "descr"
            ],
            "attached_condition": "<if>(is_not_null_compl(cscart_static_data_descriptions), ((`mobikul_delivery_boy_livedemo`.`cscart_static_data_descriptions`.`param_id` = `mobikul_delivery_boy_livedemo`.`sd`.`param_id`) and (`mobikul_delivery_boy_livedemo`.`cscart_static_data_descriptions`.`lang_code` = 'en')), true)"
          }
        }
      ]
    }
  }
}