So apparently all of Flash's action scenes are in slow motion
The problem starts with Flash (who is never actually called that name in the movie) and permeates the entire film. Between Quicksilver in X-Men: Days of Future Past and Quicksilver in Avengers: Age of Ultron, Hollywood has produced some really fascinating effects for showing superspeedsters. Justice League muddles everything about the Flash by only showing his powers in slow motion and constantly circling him in electricity, and he seldom interacts with anything that’s not CGI.
In Justice League’s first battle as a “team,” there is a tepid attempt to recreate parts of the incredibleshootout scene from X-Men: Days of Future Past (right up to running along the walls). However, in Justice League, someone decided that it’s more fun to blur the entire background, slow everything down and make it almost impossible to contrast Flash’s speed with the world around him. You should never be watching an action sequence with the Flash and think to yourself, “Will he just hurry up?”