SELECT 
  cscart_statuses.*, 
  cscart_status_descriptions.* 
FROM 
  cscart_statuses 
  LEFT JOIN cscart_status_descriptions ON cscart_status_descriptions.status_id = cscart_statuses.status_id 
  AND cscart_status_descriptions.lang_code = 'ru' 
WHERE 
  1 = 1 
  AND cscart_statuses.type = 'O' 
ORDER BY 
  cscart_statuses.position asc

Query time 0.00043

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "3.07"
    },
    "ordering_operation": {
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "1.20"
      },
      "nested_loop": [
        {
          "table": {
            "table_name": "cscart_statuses",
            "access_type": "ALL",
            "rows_examined_per_scan": 12,
            "rows_produced_per_join": 1,
            "filtered": "10.00",
            "cost_info": {
              "read_cost": "1.33",
              "eval_cost": "0.12",
              "prefix_cost": "1.45",
              "data_read_per_join": "28"
            },
            "used_columns": [
              "status_id",
              "status",
              "type",
              "is_default",
              "position",
              "services"
            ],
            "attached_condition": "(`dev2`.`cscart_statuses`.`type` = 'O')"
          }
        },
        {
          "table": {
            "table_name": "cscart_status_descriptions",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "status_id",
              "lang_code"
            ],
            "key_length": "9",
            "ref": [
              "dev2.cscart_statuses.status_id",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 1,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "0.30",
              "eval_cost": "0.12",
              "prefix_cost": "1.87",
              "data_read_per_join": "1K"
            },
            "used_columns": [
              "status_id",
              "description",
              "email_subj",
              "email_header",
              "lang_code"
            ]
          }
        }
      ]
    }
  }
}