My camera is awful

Hello i bought a MacBook Air 2018 and my camera is of poor quality, indicates that it is 720 hd but when compared to my macbook air 2017 that has the same quality, it is not the same, I am disappointed to lie to the user, it is a very expensive device and it has a big fault already that I use the camera frequently for work, in my country Ecuador did not give me solution to the matter. I need a solution since my equipment is new and I am disappointed with the quality of the camera