solve repeated call for get_object

GET /portfolio/517/insights/
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

[
    {
        "day": "2022-05-09",
        "trades": 1,
        "pl_value_fees": 77.0
    },
    {
        "day": "2022-07-27",
        "trades": 1,
        "pl_value_fees": -22.0
    },
    {
        "day": "2022-08-18",
        "trades": 1,
        "pl_value_fees": 509.0
    },
    {
        "day": "2022-08-22",
        "trades": 1,
        "pl_value_fees": 227.0
    },
    {
        "day": "2022-09-04",
        "trades": 3,
        "pl_value_fees": 424.0
    },
    {
        "day": "2022-09-06",
        "trades": 3,
        "pl_value_fees": 206.0
    }
]