Not a big fan of gore, and reading your review definitely didn't make me want to see the movie more or anything. From the way you portray it, it feels like they had some sort of ideas and attempts.. but ended up being lazy in executing them, so plot is little more than a small introduction to a festival of blood and death.
!1UP
Yeah I agree. I wouldn't even recommend this to anyone who was a fan of gore because how poorly shot it was. Felt like a Jason Bourne movie the way they kept blurring the action to perhaps make it more intense or so they must've thought.
For anyone not a fan of gore but still a fan of scary movies, I'd recommend a 2013 movie "Mama" or the 2018 TV Show "The Haunting at Hill House."