Yes, the time was definitely a lot shorter. What did she do in all the extra time, other than monologuing? She saw the MC mauling her dolls, and the only thing she did was empowering them? (which, if we assume a linear time progression to defeat the dolls, and looking at the number of enemy slain, she start to get confused and panicing at 13/49, which by the linear distribution assumed before it would be only 88 seconds into the fight, just 1 min and 22 sec out of 5min and 34 sec. I would assume a linear distribution fair, even possibly low-balling, as after that she empower the dolls, which should make defeating them harder I guess, and so diminishing in proportion the time before.
All this for saying that she, if we had to believe the time described, in 4 minutes she only empower the dolls twice, monologue a bit and rushed toward the MC? for 4 minutes??)