In a game I just finished playing, the Drengin were leaps and bounds ahead of everyone technologically. But I'm not sure how.
Game (1.4) was a huge galazy, abundant everything. I ended up with over 50% of the galaxy due to people surrendering to me. The Drengin were fairly small, maybe 30 systems? They were constantly at war with someone.
They managed to have me beat, technologically, despite my spy reports telling me that they had only a 28% boost to research (I had something like a 89% from resources), and I having vastly more planets, population, and research points.
They weren't stealing it - they literally had more techs than anyone else, and more than I had (I was leaps and bounds ahead of the other races). They completed every weapon line, every defense line, and two steps into the Tech Win tree before I completed my first weapon line.
Has this happened to others? Or are they doing something I should be aware of? Their AI level was 'Bright' (Game was set to Challenging)
I won by having everyone attack them, and overrunning their worlds with some older fleets while I got my newer ships online (and a healthy dose of tech boosts from capturing their planets).