Thank you for your help. I actually only play my own leveled ships and just can't get any further. I know I'm an easy player and not a good one. I actually only bought the two ships because I thought maybe it was the ship itself. But that was a mistake, it was neither easer nor more accurate. It remains a mystery to me why - no matter what I try - it never does any real damage. And as soon as I get close to shot, I'm dismembered from all sides. Maybe it will come with time. Coop is too easy. Battle too difficult.
Thank you again for your infos and kind words.