Well, yes. But I've never ridden a triple that wasn't quick. A triumph street triple has plenty of power and a good top end, a triump __speed__ triple, or MV Agusta Brutale has ludicrous power and a good top end. A triumph rocket 3 is, well, its' a cruiser, so it's never built for a top end. A Yammy MT-09 is lower on top end, sure. But it's the cheapest of the bunch and has lots of torque.

They only lack top end power compared to the 1000cc inline-4 engines which sit in track-focused supersports.

Which is like saying, "I found the Ford Focus RS lacking in power compared to a Porsche 911 Turbo S".