Go back to the classic format and kill the ads embedded in the email list. Also it is too easy to click on "back" when you want to reply.
Go back to the classic format and get rid of the ads embedded in the email list. The back button should not be next to the reply button because it is too easy to go back to the prior page when you want to create a response and then you have to start over. Too much wasted time with this. Writing this suggestion is also a waste of time (probably).