Me again

Two questions this time. One, after a thread talking a while ago about my demister taking ages, today we've had our first hot day in SA, and my air con did a really **** job. Took a solid 5-10 minutes to get cool, and never really got as cool as I wanted even blasting in LO mode, auto to max and AC obviously set on. Is this likely to be a regas, any way to tell if it's something else, and the costs involved?

Also, something that has been bugging me since I bought the car, the driver's side window vent, even when you face it as far left as possible, blows air at most over your right shoulder. I have a pretty standard driving position and it points absolutely nowhere near my face. The vents look like they're pointed right at me but the air comes out basically along the driver's side window. Surely this isn't normal, cause I end up with one half of my face cool and the other half warm, which is annoying!

Wondering if maybe it's obstructed inside or something and if so how easy it is to pull the vent out. If this is normal... that's horrible.