Given the vastly larger cost, and the fact that they require 5 of the advanced labs to actually make, one would think that they would be much faster.
All the other advanced buildings (chemical plant, furnace, etc..) are several times faster than the previous, which makes them feel very satisfying to use. But the Singularity Lab actually slows you down, because you have to rebuild your whole research setup and end up with far fewer labs.

Because we design an energy demand increment reaching the end game techs, this will goad players to use better energy systems to approach the end game condition more softly. The best way to increment this is with the buidling that players will for sure use, that are the laboratories, and for keep a fine grain construction, leaving to player the possibility of choise how much laboratories have, how much energy consume step by step and how increment the energy, is better have slow labs with less energy consumptions. Also, think over the fact that singularity labs are more influenceable by beacons (if u really have energy to spend).