观察到造成大量GC压力

Question

我在WPF应用程序中使用LiveCharts2，以显示实时图（100个数据点/s），

图表已连接到ObservableCollection。 我发现我的添加数据点的代码造成了很多GC压力：

要添加数据的代码如下：

// amount of datapoints to keep in chart per series 
// (200 points / 25points per second = 8 seconds)
static int dataLength = 200;
// 4 series in total
private static List<ObservableCollection<ObservableValue>> seriesDataPoints 
    = new List<ObservableCollection<ObservableValue>>();
private static List<string> seriesNames = new List<string>();
// variable in attempt to reduce GC pressure
private static ObservableValue ReUseShell = null;
// add new datapoint (and remove old datapoint if series > dataLength )
public static void AddDataPoint(double point, string seriesName)
{
    // search for the correct series
    int seriesIndex = -1;
    for (int i = 0; i < seriesNames.Count; i++)
    {
        if (seriesNames[i] == seriesName)
        {
            seriesIndex = i;
            break;
        }
    }
    // series was not found, create new serries
    if (seriesIndex == -1)
    {
        seriesIndex = CreateNewSeries(seriesName);
    }
    // check if we have a reusable datapoint (in order to reduce gc)
    if (ReUseShell != null)
    {
        ReUseShell.Value = point;
        seriesDataPoints[seriesIndex].Add(ReUseShell);
        ReUseShell = null;
    }
    else
    { // we dont have a empty data point (series < datalengt / ~initialisation)
        seriesDataPoints[seriesIndex].Add(new(point));
    }
    // remove oldest datapoint and reuse it for the next data fill
    if (seriesDataPoints[seriesIndex].Count > dataLength)
    {
        ReUseShell = seriesDataPoints[seriesIndex][0];
        seriesDataPoints[seriesIndex].RemoveAt(0);
    }
}

这就是图表的外观：

我的代码 /可观察收藏集有任何问题，还是该问题位于LiveCharts2库中？