It comes down to efficiency.
Tracking speed is either the lesser of the speed of the ship or the tracking speed of the fire control. The only exceptions are turreted weapons.
As for range, a FC that outranges your weapons has room for future weapon advances. But depending on the rate of those advances, it might be considered wasted space. ECM degrades the effective range of your FC also. So there is that the factor in. And are you getting into a chase battle or a closing battle? Chase you want longer ranges, closing it doesn't matter as much.
In effect, there is no simple answer to your question