I got it. i was taking more tests here and it seems that I just implemented more MV animation features, but in a way to replicate the MV style. And that parameter for Animation Playspeed is just for the flashes. I will have to take a look at this again to fix some things and maybe set this as a different plugin.
But, I think you can disable the MV animations on my Eli Book and instead use this plugin from Theo:
https://forums.rpgmakerweb.com/index.php?threads/animation-fps-and-offset-contro...