XAML/SimplePerformanceInfo.xaml

<Window
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    WindowStyle="None"
    ResizeMode="NoResize"
    Background="Transparent"
    Height="200"
    Width="1900"
>
    <Grid Margin="10">
        <Border BorderBrush="#333333" BorderThickness="1" Background="#333333" Grid.Column="1"
                CornerRadius="10" VerticalAlignment="Center"
                HorizontalAlignment="Stretch">
            <Grid Margin="10">

                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="150"/>
                    <ColumnDefinition Width="250"/>
                    <ColumnDefinition Width="250"/>
                    <ColumnDefinition Width="250"/>
                    <ColumnDefinition Width="250"/>
                </Grid.ColumnDefinitions>

                <Grid.RowDefinitions>
                    <RowDefinition />
                    <RowDefinition Height="Auto" />
                </Grid.RowDefinitions>
                <TextBlock DataContext="{Binding CurrentValue}" Text="{Binding CPU, StringFormat=CPU: {0}%}" TextWrapping="Wrap" Margin="5" Foreground="#28bf37" FontFamily="Consolas" Grid.Column="0"/>
                <TextBlock DataContext="{Binding CurrentValue}" Text="{Binding Memory, StringFormat=Available Memory: {0:N0} MB}" TextWrapping="Wrap" Margin="5" Foreground="#28bf37" FontFamily="Consolas" Grid.Column="1"/>
                <TextBlock DataContext="{Binding CurrentValue}" Text="{Binding NetworkUp, StringFormat=Network Up: {0:N0} KB\s}" TextWrapping="Wrap" Margin="5" Foreground="#28bf37" FontFamily="Consolas" Grid.Column="2"/>
                <TextBlock DataContext="{Binding CurrentValue}" Text="{Binding NetworkDown, StringFormat=Network Down: {0:N0} KB\s}" TextWrapping="Wrap" Margin="5" Foreground="#28bf37" FontFamily="Consolas" Grid.Column="3"/>
                <TextBlock DataContext="{Binding CurrentValue}" Text="{Binding Space, StringFormat=Available Space (C:): {0:N0} GB}" TextWrapping="Wrap" Margin="5" Foreground="#28bf37" FontFamily="Consolas" Grid.Column="4"/>
            </Grid>
        </Border>
    </Grid>
</Window>