WPF DataGrid ItemsSource StaticResource

//xaml
<Window x:Class="WpfApp386.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:WpfApp386"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Window.Resources>
        <local:ItemsList x:Key="itemsList"/>
    </Window.Resources>
    <Grid>
        <DataGrid ItemsSource="{StaticResource itemsList}"
                  AutoGenerateColumns="False"
                  CanUserAddRows="False"
                  VirtualizingPanel.IsVirtualizing="True"
                  VirtualizingPanel.VirtualizationMode="Recycling">
            <DataGrid.Columns>
                <DataGridTextColumn Header="Id" Binding="{Binding Id}"/>
                <DataGridTextColumn Header="Name" Binding="{Binding Name}"/>
                <DataGridTextColumn Header="Title" Binding="{Binding Title}"/>
                <DataGridTextColumn Header="Topic" Binding="{Binding Topic}"/>
                <DataGridTemplateColumn Header="Image">
                    <DataGridTemplateColumn.CellTemplate>
                        <DataTemplate>
                            <Image Source="{Binding ImgUrl}" Width="200" Height="500"/>
                        </DataTemplate>
                    </DataGridTemplateColumn.CellTemplate>
                </DataGridTemplateColumn>
            </DataGrid.Columns>
        </DataGrid>
    </Grid>
</Window>



//cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.IO;

namespace WpfApp386
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }
    }

    public class ItemsList:List<Book>
    {
        public ItemsList()
        {
            var imgsList = Directory.GetFiles(@"../../Images");
            if(imgsList!=null && imgsList.Any())
            {
                int imgsCount = imgsList.Count();
                for (int i = 0; i < 1000000; i++)
                {
                    this.Add(new Book()
                    {
                        Id = i,
                        Name = $"Name_{i}",
                        Title = $"Title_{i}",
                        Topic = $"Topic_{i}",
                        ImgUrl = imgsList[i % imgsCount]
                    });
                }
            }
        }
    }

    public class Book
    {
        public int Id { get; set; }

        public string Name { get; set; }

        public string Title { get; set; }

        public string Topic { get; set; }

        public string ImgUrl { get; set; }
    }

}