Did you ever come out of a theater and say something like, “I thought that thing would never end!?”
There is a reason for that phenomenon.
The apparent speed of a screen story does not depend on the action, or the motion, or the dialog, or how much is happening on the screen.
A movie can have tons of special effects, and sounds, and noise, and battles, and sex, and talking, and all kinds of other stuff happening all over the place and the story can still move too slowly for your audience.
That’s because the pace of the story depends solely on how rapidly new information is revealed to the audience that moves the story forward on it’s major through-line.
If you don’t reveal new information along the through-line quickly enough, your audience’s perception will be that the film is too slow, and you’ll bore them to tears.