The current ISSB is a liability with huge price tag, and cannot survive a single rally of missile fighters.
I think Empire need their ISSB back from 1.44, where multiple ISSB can target the same ship at a time, perhaps with a reduced recharge rate from the previous version. Now that stacking is removed, reducing ISSB’s range can also limit the amount of ISSB focus at a time. Alternatively making them a cruiser module might make them usable.
Anyway I think something needs to be done to it. It’s such a cool module with the potential of making empire competitive, but is now just sitting there as another useless module.