As already stated, there is no delay, only the inconvenience of pressing the ECO/Mode button. Although I'm so used to it now I don't even really notice it.
Anyone who is thinking there is a delay may be waiting for the dials to go through their cycle before pressing the ECO/mode button and then the starter. You do not have to do this. As soon as you turn the key you can press the ECO/Mode button and hit the starter immediately afterwards. The bike will start even while it's finishing it's dial cycle.
At first I thought I had to wait for it to display the 'read safety card' message before I could press ECO/Mode to acknowledge it. However, one day I just pressed the button without thinking about it and the message was cancelled before it came up. I now do the key, button, starter procedure all within 1 second and it's up and running.
Works on my wife's F3T, thanks