How do I change the speed and width of the indeterminate progress bar animation in WPF?

Regarding the WPF Progress Bar when IsIndeterminate is set to true, I personally think the animation is too fast.

I think slowing the animation down and maybe making the internal bar wider would help ease this problem.

Is there anyway to customize this?

edit: added code

.xaml

<Window x:Class="IndeterminateProgressBarTest.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:IndeterminateProgressBarTest" mc:Ignorable="d" Title="MainWindow" Height="100" Width="700"> <Grid> <VisualStateManager.VisualStateGroups> <VisualStateGroup Name="Type"> <VisualState Name="Indeterminate"> <Storyboard RepeatBehavior="Forever"> <DoubleAnimationUsingKeyFrames Storyboard.TargetName="Animation" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)"> <EasingDoubleKeyFrame KeyTime="0" Value="0"/> <EasingDoubleKeyFrame KeyTime="0:0:0" Value="0"/> <EasingDoubleKeyFrame KeyTime="0:0:0" Value="0"/> </DoubleAnimationUsingKeyFrames> <PointAnimationUsingKeyFrames Storyboard.TargetName="Animation" Storyboard.TargetProperty="(UIElement.RenderTransformOrigin)"> <EasingPointKeyFrame KeyTime="0" Value="0,0"/> <EasingPointKeyFrame KeyTime="0:0:0" Value="0,0"/> <EasingPointKeyFrame KeyTime="1:0:0" Value="0,0"/> </PointAnimationUsingKeyFrames> </Storyboard> </VisualState> </VisualStateGroup> </VisualStateManager.VisualStateGroups> <ProgressBar Name="progressBar" Width="600" Height="25" IsIndeterminate="True"/> </Grid> </Window> 

.cs

namespace IndeterminateProgressBarTest { public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); VisualStateManager.GoToElementState(progressBar, "Indeterminate", true); } } }