You're giving up too easily. Stripping, cleaning, replacing springs and lubing is standard procedure for a used gun. No biggie. It really isn't rocket science.
I have crippled hands, so I got my brother to help me and we took the back plate off to put in the lighter Wolff's 5 lb striker spring, clean and inspect everything. We had a recent post about a new gun that was loaded with grease in the striker and extractor channels. There is a sticky thread in the Kahr-Tech section that details how to strip it down. Use a gallon size freezer bag or a towel to catch any flying parts so they don't launch across the room and get lost.
No better way to get to know your gun, understand it, bond with it. Get some springs from Wolff's, take it apart, clean it, lube it according to the Lube Chart sticky - putting grease on the rails and wherever they say "rub", and oil everywhere else. Then, buy some quality ammo and go shoot it like you stole it! I'll bet it will perform admirably!