A missed opportunity

Rating: 3/10 (28 August 2019)

I will try to be fair and honest. A star each for the music, the visual style, and Pitt/DiCaprio acting. I contemplated leaving after an hour because I was bored. My girlfriend told me she was falling asleep.
I found the plot and dialogue boring. There just didn't seem to be any real point to it. Previous films contained seemingly pointless dialogue, but it was tongue-in-cheek or ironic, so it was acceptable. But in this case it was neither of those.
The violence scene was great, over the top, etc. Shocking yet funny. But why was it only 5 minutes in length and over 2 hours into the film? Why not focus more on the Manson murders, the hippies, the weird hippie village, the relationship between Pitt and the hippie girl, and less about the westerns, the Sharon Tate cinema self indulgence and the annoyingly grown up 8 year old girl?
It didn't make sense to have Pacino in the film. Pacino needs to be off his leash to be successful (and you would need to fuse a Pacino film into a Tarantino film). Better not to use Pacino at all. Damien Lewis looked more like Garth Elgar than a young McQueen - same as Pacino, why was he in the film?
How can this film possible score 8.9 the same as Pulp Fiction which is a classic? How can that possible be? How can there be so many 10/10 reviews? What happened to the 5, 6, 7, 8 put of 10 reviews?
I think this could've been a smashing film if all those things were worked on.