Authoritarian governments are always more efficient than democracies. Their flaw is that citizens have no say in what goal will be efficiently pursued. When a technocratic authoritarian is in power, things improve overall (but there are still many "inefficient" people left behind or crushed). But when a cruel or incompetent authoritarian takes control, things hit lows that sound democracies wouldn't allow. Lows that take generations to recover from.

While I like your message here, I don't think authoritarianism is actually more efficient (efficient at what?) usually. Because often it goes hand in hand with economic and social extraction, which is inherently inefficient.

But I take and am a bit heartened by your main point - while the best case authoritarian regime can plan and execute more quickly and with greater efficiency than representative government, the worst case authoritarian govt is much much worse than the worst case possible with a functional democracy.

They are not more effective. They basically always end up as highly currupt ineffective mess.