I've noticed the game software, at long range, took some "liberties" with the planes trajectories (odd angles etc...) which then disappears when u get closer ( not an issue as u cant dogfight at 6k distance) : the "general" trajectory is tho correct, so no problemo. Then there is ofc LAG, which is something you cant overcome, especially if you play from a country at the opposite of your opponent's one...
For FILMS its very different, your plane flight parameters are 100% accurate, but when you use another plane's camera, then the same "odd" angles are back, which can look weird : i so wouldnt trust the FILMS for those specific parameters, only for general ones.
To be sure it's "normal", just send one of yours to HTC, they will confirm what's happening.