To add to that fact, it was actually originally supposed to be all-CGI, as it was seen from it's pilot episode.
But yeah, the CGI being all over the place, that I actually cover Kirby (since he's the most frequent victim of this) with my hanRAB when it happened.
Yeah, it was that uncomfortable. Another also; if they did CGI to save costs, it's impressive that they're able to animate the huge majority of the Cappy characters and the animals. That's kinda ironic.
As for Tiff getting more scenes/lines, all that stuff, someone forgot to mention that DeDeDe also got a lot of lines and scenes, as well.