"Visual range" and "sensor range" seem like the same thing, but not "targeting range".
For example, I can look at a far-away tree through a telescope (visual range), but that doesn't mean I can hit it with a BB gun (targeting range). The starship's sensors have identified the other ship, but all they can do is look at it on their big-screen until it gets close enough for their torpedoes to hit it.

While he was in the bathroom, Al suddenly appeared.
"Ziggy says there's a 98% chance that you saved that man."
And then Sam leaped, hoping it would be his last.

The starships CAN attack each other far away; they just have to be close in order to transmit communication videos. That's because none of the ships have an antenna. That technology was lost in the 22nd century, along with the electrical fuse.

"This video has been removed by the user."

That's what I tell myself every Friday night.

Lucky you. People can sing to you without paying royalties.