It's obvious why this movie got made: someone saw a bunch of movies by Quentin Tarantino or Guy Richie and thought "I can do that! How hard can it be?"
Problem is, it actually IS hard! What makes those movies work is extremely sharp dialog, dialog smart enough that we kinda like something about these criminals, even if they are idiots, amoral, or both.
If you don't have that dialog, all you have is a bunch of unpleasant twats doing unpleasant things. No laughter, no engagement. And when you no longer like the characters (and so no longer care if they live or die), even basic mechanical elements like tension and action no longer matter - who cares about the gun fight if, honestly, I'd be happy if some of the main characters were shot?
If you don't have that dialog, all you have is a bunch of unpleasant twats doing unpleasant things. No laughter, no engagement. And when you no longer like the characters (and so no longer care if they live or die), even basic mechanical elements like tension and action no longer matter - who cares about the gun fight if, honestly, I'd be happy if some of the main characters were shot?