I agree with the OP - The volume was (like many/most) movies, too LOUD. What was really bad were the interminable (20 minutes) of commercials (called pre-views in the movie business). The volume was so loud that a group started yelling "Turn it down"!!! If the actually movie had been that loud, I would have left and demanded my money back.
Overly loud movies have been around for at least 15 years. I'd rather watch a movie at home.
Re: Lens Flare - From wiki:
J. J. Abrams, the director of the 2009 version of Star Trek, used this technique. "I wanted a visual system that felt unique. I know there are certain shots where even I watch and think, "Oh that's ridiculous, that was too many." But I love the idea that the future was so bright it couldn't be contained in the frame." Many complained of the frequent use, Abrams admitted it was "overdone, in some places."
I guess he forgot what he said 3 years ago. Personally, I didn't notice this as a real problem.
I really liked the casting of the crew. The characters were all true in acting and accent to the original ST. [Yes, I did attend one ST convention in LV and bought some memorabilia at the Christie's auction a few years ago.]
An enjoyable movie experience - a sellout of 3040 at the restored Paramount Theater in Oakland when they played "Casablanca". No overly loud artificial sound effects. I don't need noise or artificial special effects to be entertained.