The layout and organization is sloppy. Please do not change it.
Thanks for taking the time to provide us some feedback. I am sorry to hear you aren’t a fan of the new experience.
There are a few things that you might want to try. If you click the gear at the top right, you can disable the sender photos and attachment previews.
This might help reduce some of the new features that feel different. I would love to hear your feedback after you try that.