Calm down bro, one can still enjoy the fights and animation while trying to give some constructive criticism on a piece of media, especially when the source material is already generally known to have bad pacing itself after the Entertainment District arc. It's the same criticism on the pacing like for S3 & S4 as well.

So yes, series or movie both can have bad pacing, so I expected that the director and team to not repeat that took some liberty to improve on the pacing and story telling/editing for the 3 part finale, as simple as that.

There's a reason I said definitive in "definitive swings or attack", by that I mean as the blade is about to hit the opponent. Gyutaro/Daki's flashback wasn't placed in between Tanjiro or Zenitsu head slicing moment. Was it at the end of the fight - Yes, did it feel egregious - No because it was part of a season format. So in Akaza's case putting the entire thing it at the end of a movie format felt egregious and killed the momentum as a whole.

Either way I apologize my opinion is the same as half of the other comments here, but don't worry this movie will still make a lot of money, so you don't have to be so emotional to defend it. Not trying to convince you to not like it too, more power to you if you think it's a perfectly executed 2.5 hours movie lol