Gah, long range heavy ended up with 34/35 PWR and WT(Improve Reactor for +5 PWR)....two hour running time is one the short side, even for a prototype experiment.

I have Internal Targetting and Radar, Sonar spikes, Primarily Laser, the Artillery(from one of the defaults), improved reactor output, built in ballistics and missiles, class 5 shield, alloy shield, and heavy plating.

Any idea what I can change?