solve repeated call for get_object

GET /portfolio/985/insights/
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

[
    {
        "day": "2022-07-19",
        "trades": 1,
        "pl_value_fees": -13.0
    },
    {
        "day": "2022-07-21",
        "trades": 1,
        "pl_value_fees": -1.0
    },
    {
        "day": "2022-11-30",
        "trades": 3,
        "pl_value_fees": -2.0
    },
    {
        "day": "2022-12-05",
        "trades": 1,
        "pl_value_fees": -3.0
    },
    {
        "day": "2022-12-06",
        "trades": 2,
        "pl_value_fees": 1.0
    },
    {
        "day": "2022-12-07",
        "trades": 3,
        "pl_value_fees": -11.0
    }
]