Hello there! I'm glad to help you today!
May I ask what app are you using on the camera? Is the camera quality the same even on Windows' built in application?
Press Win (Windows key).
Type Camera.
Click the Camera app from the search results.
Have you also tried cleaning the camera lens with a microfiber cloth?
Have you also tried updating the drivers from your computer's manufacturer website? If not, may I ask what is the make and model of your computer?
Press Windows + R, type msinfo32, and hit Enter.
In the System Summary section, please provide me the three things below.
BaseBoard Manufacturer
BaseBoard Product
BaseBoard Version