That some have short turn times proves 4 things, they play on 5m combat, instead of 8/12) they do not play Hiver, they do not play with 6+ enemies, and they are not allied with any of these 6+ guys either. So basically, you are not playing this game at all. Because as a 4x game, the only POINT of it is diplomacy/MAX races and a large map. If these factors come together the game falls apart so epic that even calling it a game is a joke. Because you are waiting longer for the "combat simulation" to simulate nothing than you actually play the game (and that means, combat simulation you have no active part in)
Because lets be clear, the literal turn time is snappy fast, unless a combat simulation happens (if you play Hiver+allies+8 AI you will quickly learn why some people HATE this current auto-resolve method).
Because yeah, the "turns" pass very fast, only that there are 12 combat simulations in queue because the AI attacks some colonies of some AI's I have cease-fire or alliance with and thus a gate around and thus I have to suffer through 5+ minutes of boring simulations of nothing.
So please, never say you have fast turn times and look at people as if they are lying or bashing the game. Because when I (and many others) say turn time, they mean the time from pressing END to the moment we can actually give orders again. And if you have allies in Sots2 and you have scouts/gates around your allies planets you will learn the very hard way what TURN TIMES ARE TOO LONG really means.
10 seconds? How about 50+ seconds per battle of 8m combat, and I had (record) 36 combats queued once when it was very late game and a 2v1 resulted (me + ally vs enemy AI) with over 130 colonies. The turn never actually ended (thankfully a patch broke this save so I have never again to think of this..)
Now, fair enough I am probably expecting a bit more than the average person of a 4x game (I hate playing with 2 or 3 AI) because it too quickly dead-locks you in a situation you can not win if you are unlucky. This is why to me 12m and 8AI is the only way to really play this game. And currently, at this "level" of gameplay, the game is broken. Sure lots of bugs/gui things were fixed, the elemental problem of this game (combat simulation being what it is) is however not fixed, and it is constantly being mentioned to not play with 8 players, which is like saying "this is the gas pedal, don't use it more than 5%" when you have a car.