Not quite sure what you men , I haven't noticed any bad animation (though that might just be me) , also compared to season one , season two uses a lot more flowing shots and "camera movement" which might explain why some shots may not be as good as others , it's hard to keep the movement of both the characters , objects and camera relative to "real time".
I can't wait to see Shiro fight properly but I doubt that we will see more than the start of his fight with Nagare in the next episode.
We will probably see Saruhiko and Yata take on Sukuna and Kuro clash with Yukari (finally) , and possibly (since we're getting near the end) some more info on Neko , though that will most likely happen in the final episode (if it happens at all).