When I select new mail in the inbox, the subject and the to/from header appear in the preview pane instantly, but the text and graphics of the message take up to 3 minutes to appear. Is there a way I can fix this?
These issues are common and known. I think they are working on it to speed this process up. This happens from time to time.
Graphics displaying in the message body (particularly when inline) can take time on any email client to fully display depending on the resolution and computer speed. Once the email is read and cached should then display nearly instantly the next time the email its read.
I have been sending and receiving email for 25 years. This is a new development, and three minutes for a few lines of text or a pizza ad to appear is not normal.