I think Amondd has already answered, 2 shots to an un-upgraded ship seems fine. I'm not sure my scout needs to do too many more - its all over very quick against new ships. I dunno what loadout he's using, but rocket pods don't need a lock-on btw.
Two LASER shots? I've played a lot of matches of starfighter and it's closer to twenty
shots to destroy a strike fighter.
Next time I play a match against him, I'll just have to record it.