What kind of camera are you using? I have a couple of the cheaper Moultrie cameras and the picture quality is about par with what you’re seeing. I have a handful of the higher end Moultrie cameras and the quality is literally night and day different.
It usually comes down to the camera itself, but there are a few things you can do to possibly improve the camera. Be sure there is a water tight seal, make sure the lens stays clean, ensure there isn’t an abundance of small sticks and brush that can trip the camera and the camera isn’t pointing directly into the sunlight at peak times. I’m sure many other people will chime in with good input, also.
We had one camera stolen this last week on our 601 property. Luckily two other cameras picked up pictures of them carrying it. Working on getting more info from the neighbors.