I know she was *breaking* apart. I'm saying it's inconsistent that the Narada could so utterly pwn the Kelvin at first and not afterwards. And why couldn't the Narada.. you know.. dodge the Kelvin?
Okay, I'l play the speculation game.
The Kelvin was described as heavily armed with advanced weaponry.
Maybe, just maybe they could have damaged the Narada thereby limiting its capabilities.
Maybe, just maybe, going through the black hole also affected the Narada.