Congrats on your purchase! I just got mine as well and have only fed her Federal 550 bulk, which she seems to like. About 350 rounds with no issues. Mine too was really tight and hard to manipulate as well as the safety & bolt release buttons. I took it a part once to clean from factory with no real change. The bolt release seems like it got a bit smoother, but the safety and mag are about the same. I too am hoping over time they will get a bit better, but right now am happy that it functions well and shoots nice! I know there is a bunch of info about modifying the magazine release safety/disconnect which will let it fall right out, but I'm not ready to tackle that one so soon. At best mine drops about 1/4"-3/8" then grab and pull, sometimes a fingernail on the front is necessary.
Maybe it will get better when it's broken in more. I am also not quite sure why when the bolt is held open on last shot and a new full mag is loaded you can't grab and slingshot the bolt to closed position. I have to use the bolt release button. I am not used to that, usually I just grab it and give 'er a yank.