Is there a way to display the bundle discounts in cart?

Yes, we have an option to turn on the display of discount at cart total value. The cart total value will be crossed over and the discounted price with the discount will be displayed under it. 
You can turn it on in General settings. 
Since themes are very different from one another, it may happen that the discounts won't display in your cart. If this happens, contact us at [email protected] and we will make the app compatible with your theme.