The Flash Creates A Superpower Problem For Future Sequels

screenrant.com:

The multiversal story of Andy Muschietti's The Flash allows Ezra Miller's Barry Allen to sidestep a superpower issue, but only until his next DCEU appearance. In the DCEU, The Flash is one of the most important metahumans on Earth, as a founding member of the Justice League and a key player in stopping Steppenwolf's invasion. Barry Allen has presumably made a name for himself as a hero in Central City, and he's about to become the key to the DCEU multiverse in his upcoming solo movie, The Flash.

However, Ezra Miller's Flash is far from an experienced superhero. Barry Allen had barely tapped into the Speed Force when Bruce Wayne recruited him, and unlike heroes like Batman and Wonder Woman, he's just getting used to high-stakes battles. But even though The Flash will be Barry Allen's very first solo adventure, the movie will already involve the multiverse and bring major changes to the entire DCEU as we know it.

Related: Flashpoint Explained: DC Comics Story & The Flash Movie Connections

Such an impressive task certainly calls for an improvement in the Flash's abilities, as time travel and cross-dimensional travel are only attainable by the most powerful speedsters. By the time the Flash is able to travel to the past and visit other realities, it will be very difficult for anybody to become a threat, as he could dispose of any villain in a matter of instants. This is a common problem that comic books, movies, and shows often run into with speedsters: they simply become too fast for any conflict to be believable. Fortunately, speed will only get Barry Allen so far in The Flash, where making alliances and sacrifices may be more important — and compelling, for that matter.

With Ben Affleck's departure as Batman and Sasha