I'd prefer to think of Boba Fett as a Hunter that stalks his prey I guess...
The problem is the approach on the Alderaan / death star in ANH...
The falcon can track a ship following it in a group of inanimate asteroids... Bobba fetts ship is no different from this scenario in ESB.
So without using any logic at all the magic cloak solves it all... No matter what anyone says.
And then we don't have to make guesses about how what who where or why... It just is that way. Rather than ????
I always thought Boba fett reached Bespin after the Falcon