No as in it's a problem inherent in the first movie for each superhero, not the first superhero movie ever. Maybe they should figure out a better way to do it, but usually they spend a fair bit of time with them before the big motivating event happens. Then they have to have scenes of them in the wilderness or building their suits and learning their powers, training montage type stuff. Then we get to the plot of the movie by like an hour in. I mean that stuff can be really fun to watch, but if there's not enough room left for a satisfying villain or ending then it spoils it a bit.
And of course the second film is usually a lot better, as the character is already established and you can have a plot and an antagonist running through the whole of it. It's definitely a bit of a weakness that you can't really get going telling a proper story until the second film, although I guess you don't want to blow your load right away if you're aiming for a trilogy.