While main stream cinema has a "high speed only" problem, I'll also posit that indie stuff sometimes has the opposite. There's a particularly annoying set of horror films (and stories, etc) that seem to be built around the idea that "less is more" and "nothing is scarier", but take it to the ridiculous extreme where it seems like sometimes they forget to tell an actual narrative. People have said D&D is 20 minutes of fun spread across 4 hours; indie horror sometimes feels the same way.
I rarely turn off of a movie once I get in far enough, but there have been a couple where I got bored enough to say "Get on with it already!" and watched the last half on fast forward. Most recently, Skinamarink and Possum. Also, it's the main reason I never got into The Magnus Archives.
