From one of the most profitable gaming companies in the world, one of the most recognized series. It's simply inexcusable how badly this both looks and preforms. Aside from the huge performance issues, it's a pretty standard Pokemon game. It doesn't break any molds, it drops all of the innovations Legends: Arceus brought.
I'd honestly give it a 3/5 if this was some indie dev but it's one of the largest companies in the world, they could've optimized it and made it great but instead they squeezed out a cash grab.