solve repeated call for get_object

GET /portfolio/1910/insights/
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

[
    {
        "day": "2023-02-10",
        "trades": 2,
        "pl_value_fees": -6.0
    },
    {
        "day": "2023-02-13",
        "trades": 4,
        "pl_value_fees": -110.0
    },
    {
        "day": "2023-02-14",
        "trades": 4,
        "pl_value_fees": 284.0
    },
    {
        "day": "2023-02-15",
        "trades": 1,
        "pl_value_fees": 103.0
    },
    {
        "day": "2023-02-16",
        "trades": 1,
        "pl_value_fees": 102.0
    },
    {
        "day": "2023-02-17",
        "trades": 6,
        "pl_value_fees": -0.0
    }
]