The OS numbers could have so many factors, including the geo political. But F1 and JW are doing rather well. Not all time, but much better then Superman. I do wonder if there is a centering of a very specific type of America in this movie that could... let's say not play well to the rest of the world who is having to deal with us at the moment.
I remember all the talk with Cap starting with TFA, and while it definitely put a cap (see what I did there) on his series, they never felt as pointed in their material as this. Even TFA with it's very rah-rah WW2 feel. TWS and Civil War very much give Steve a lone wolf, stuff ain't okay here feel.