SELECT 
  * 
FROM 
  cscart_menus 
  LEFT JOIN cscart_menus_descriptions ON cscart_menus.menu_id = cscart_menus_descriptions.menu_id 
WHERE 
  cscart_menus_descriptions.lang_code = 'en' 
  AND cscart_menus.company_id = 1 
  AND status = 'A'

Query time 0.00032

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "1.35"
    },
    "nested_loop": [
      {
        "table": {
          "table_name": "cscart_menus",
          "access_type": "ALL",
          "possible_keys": [
            "PRIMARY"
          ],
          "rows_examined_per_scan": 5,
          "rows_produced_per_join": 1,
          "filtered": "20.00",
          "cost_info": {
            "read_cost": "0.90",
            "eval_cost": "0.10",
            "prefix_cost": "1.00",
            "data_read_per_join": "16"
          },
          "used_columns": [
            "menu_id",
            "status",
            "company_id"
          ],
          "attached_condition": "((`gaseus`.`cscart_menus`.`company_id` = 1) and (`gaseus`.`cscart_menus`.`status` = 'A'))"
        }
      },
      {
        "table": {
          "table_name": "cscart_menus_descriptions",
          "access_type": "eq_ref",
          "possible_keys": [
            "PRIMARY"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "menu_id",
            "lang_code"
          ],
          "key_length": "9",
          "ref": [
            "gaseus.cscart_menus.menu_id",
            "const"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 1,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "0.25",
            "eval_cost": "0.10",
            "prefix_cost": "1.35",
            "data_read_per_join": "784"
          },
          "used_columns": [
            "menu_id",
            "lang_code",
            "name"
          ]
        }
      }
    ]
  }
}

Result

menu_id status company_id lang_code name
2 A 1 en Main menu
5 A 1 en MAIN (FOOTER)
6 A 1 en LEGAL