I'm not the biggest fan of the Tomorrowverse saga, but each film that's come out thus far has been relatively decent. Until Warworld. Just like that film, is this a long episode or an actual movie? Personally, I like long story arcs that continues across separate entries, but this continuation can't be so much of the focus that it hurts the individual film itself. While parts one, two and eventually three are in the actual title, each release needs to be able to stand on its own. They failed at that here.
The entire thing kind of drags. While the parts containing Kara, Psycho Pirate and the Monitor are interesting, the way these events are put together hinders momentum. That, along with the monotonous color palette combines to create a sense of meandering and stagnation. At one point I actually paused the film just to see how much of it was left, something I never do for any film worth watching and the first time I've done so for a DC animated one. By the time the lukewarm cliffhanger hits, you simply feel nothing about it.
There have been a lot of criticism about the art style for Tomorrowverse, and while I can confidently say style is subjective and not indicative of true quality, some of the scenes in this film and the ones prior appear to have been rather hastily or even lazily done. A fight happening in the background put there with the absolute minimum effort because, who's going to stare at that? Or someone wiping their face simply with a hand motion sans any of the facial mannerisms to match. Things like this scream budget, effort, or time issues and it absolutely hurts the final product.
I love DC Comics and the animated films/series that have come from them, but this film and a few before it have been disappointing. Even if part three turns out to be amazing, it won't save this one nor justify the time spent to get there.