A simple hospital grade upgrade, even into a shared circuit, will help sound.
I’ve replaced at least half of the outlets in my home, and let me tell you, trust nothing. 🤣
If you are using a shared circuit, replace and clean every other outlet on the circuit as well. Doesn’t have to be platinum, cryo outlets, but do use at least Commercial/Residential and take the time to clean each wire with fine sandpaper.
You’d be amazed at the stuff I found in this 17 year young home. Totally worth doing. Even my kitchen appliances run better.