I feel like you're just not very good at the game. Not trying to insult you or anything, but the fast speed of everything actually improves the atmosphere by making everything frantic and stressful, not to mention the random enemy spawning will always keep you on your toes. It does a wonderful job of recreating the action and feel of the movies while translating it into the medium of gaming, even if certain specifics are off (and many of those specifics would just make the game boring or even more frustrating anyway). Once again, I'm not trying to be mean, but most of your complaints just come down to you not being that good at it, which is nothing to be ashamed of because it does take some time to get used to after a decade of shooters that play very differently from this one.