"But these were not normal Draconians, these were genetically modified to be as powerful as possible. Strangely, they had no cybernetics, thus being easily killed off by any synth. Apparently, however, the human officers had far too much faith in the Draconian's abilities. "
-Keyguyperson

I would like to point out that the Draconian Empire, which was still far ahead anything the Milky Way has ever produced, had already done so. A Draconian Empire footsoldier was already the best they could be without altering their height beyond the 12-foot mark, and they had cybernetics and implants that enhanced them even further. How can you upgrade a computer with all the highest-quality, latest tech and best engineering, without making it bigger than it already is? The technology used for Draconian was ahead any of the Milky Ways' empires, even at their height.

Draconians were genetically engineered in the first place, then evolution took its tolls and enhanced the Draconians further for combat and survival, and then the Draconians themselves enhanced themselves even further, and then they began enhancing everything even more with technology.