I would like the e-mail composition autofill feature to go back to the way it was.

When I start typing in an e-mail address that I've used before and/or is in my contacts, the dropdown menu for suggested e-mail addresses is really slow to show up and they don't highlight. Before, the top choice would be highlighted and I could just press 'enter' to select it. Now, I either have to press the 'down' button or click on it with my mouse.

Is there a way to fix this so it can go back to how it was? It made composing e-mails easier and faster.