The way she described how it was working, it doesn't sound waterlogged. But you are right, the non-bladder tanks are susceptible to waterlogging.
Yea two problems. The one who worked on it {according to post in other thread said water log. That and the filter {not needed really} 3-5 minutes to fill an empty tank is about right. What puzzles me is it's an 80 gallon tank? That's a plenty big enough even for a large family and a non bladder tank. My parents have a 50 gallon and 8 people have lived there with no problems.
It sounds like {if there is one} the strainer at the pump may be partially clogged but would not mean a new pump though. My well is about 180' deep and I keep the pump at 160' so it doesn't suck sludge, gravel etc. But if I was going to pull a pump to have a look see on the strainer etc I'd replace it. I use flexible black water line and it's still a pill. I built a pulley system above the well so all I have to do is turn the handle and wind it up to me :>}