Efficiency is not always desirable in legislature. It would be efficient if a political faction, as soon as it reached the threshold for being able to pass any

Efficiency is not always desirable in legislature. It would be efficient if a political faction, as soon as it reached the threshold for being able to pass any of its legislature to immediately pass as much of it, as quickly as it can sign it. You generally don't want someone with a 50.1% (or a 48%) mandate to turn everything upside down as soon as they get elected. But yes, there's some middle ground between that and endless gridlock.