That's why I focus on better tires, brakes and suspension. I upgraded all these to make the Z handle and stop better. I don't ride it any faster in the twisties but it feels safer when I'm at my own pace. The z900 has plenty of power for my purposes.
Many moto journalists say the same thing, when they push their bikes some sort of safety system activates and restrains the throttle hand.
I like how this article explains why you have to go fast to make a tight corner. There's a video on YouTube showing some amateur making great time around a race track. Suddenly he is passed by Rossi, allegedly, like he is standing still. Then he dives into a corner and disappears, LOL. Whoever it was flying by has his safety system set on another level.
Here it is. It certainly looks like Rossi.