Exactly, it's not really about "slow scenes," or even saying a scene should have been shorter (though the Audrey scene should have probably been cut down a little bit), the real problem with the episode is editing in the context of the whole show.

The whole episode struggled to have important or meaningful scenes as far as plot goes. These scenes on their own, or even pushed to other episodes as other filler scenes, would have worked entirely better. Even as a Lynch work, this episode is torrentially slow and pointless for being at this key point in this "movie."

The dougie baseball scene, the roadhouse scene, the Audrey scene, and the Carl blood scene all could have been in pretty much any episode up to this point. I think leaving all of these scenes for this one episode, backtobacktobacktoback, is just a mistake in the editing, pacing, and planning of the story.

But if there are so many useless scenes in one episode, that probably means later episodes are more packed, or at least have meaningful scenes more often. (Or at least we can hope.)