Okay, let me quickly answer you.
1. This might be due to two possible causes: one is that some ambient sound of the station is improperly assigned and warp sounds are played instead (that also happened to me in one of the older iterations of Sol: a History, an Arcadia station just kept emanating some warp sound and Avenger had some huge beam warmup sound, I think), the other one is that there's some problem in the mission script that just loops around creating a warp effect somewhere near the station... I'd say the former is more likely to me.
As long as it isn't gamebreaking, just continue playing I guess.
2. The game is meant to be played with whatever you fancy, but if you're stuck with keyboard and mouse like me, here's a tip. I generally fly with movement/targeting/weapon keys on the left side of my keyboard, using my left hand to operate these, I use mouse in my right hand to do all of the aiming, but I still have aim keys also bound to the right side of the keyboard, that is arrow keys or numpad. Even while having mouse sensitivity in FS cranked up to max, it isn't really great for sharp turns. That said, I usually default to mouse and in a pinch just swap to arrow keys to have maximum maneuverability while not having to worry about running out of mouse space.
That said, welcome and have fun!