First of all, Base Mira wasn’t Jacob level, Hiro flat confirms the main reason she even beat Jacob is because he was closing his eyes, which in fact nerfed him, and she ended up needing Satan Soul to actually win, and don’t pull up the Anime, so yeah, Satan Soul Mira beat a nerfed Jacob, so she’s Spriggan level, her Alegria Form is far above that and can one-tap Spriggan level people, so she’s comparable to FDKM Natsu and Base Laxus, but she’s by no means above Ref Lightning Laxus, you have her way too high
As for Base Irene, we flat out see Strongest Armors Erza alongside Wendy pressure and injure her, yeah she’s above them, but not by an astronomical degree, I also flat out disagree with X792 Gildarts being above DSK, you realize a year has passed right? One year in FT is a huge amp of power to everyone, I mean look at the gap between X791 and X792