Slowest is 1st to 2nd gear, 2nd to 3rd could also be a bit quicker.
Other gear changes are fast enough.
All in all, it is fast enough, but it's not for a boy racer who wants to race on traffic lights.
Yes, you can definitely change gears faster with standard manual, but i-SHIFT is really great for what it is designed to do.
All in all, I like it a lot!
