It's hard to diagnose your car from here. I'd be happy with what you're getting on a car of that year. Clean your condenser. Hose it out with a garden hose. Be carefull trying to clean the evaporator by hand. You can do more damage than good. An evaporator coil cleaner might do some good sprayed on and rinsed immediately followed by some deodorizer. Coil cleaner has an acrid stink to it. She certainly wont like that. Debris on the coil will promote freezing. Good luck.