Experiencing shutter lag on Nexus 4's camera?

Just curious if any other new Nexus owners are frustrated by this. Coming from an iPhone 4, the Nexus 4's camera is much worse, from a layman's perspective at least. Almost all of my shots end up blurry, and there have been instances where the camera app will freeze when trying to focus, and won't actually take pictures. To fix this, I have to change the camera mode to video and back; even quitting the app doesn't reset the camera.

Aside from this major issue, I really like the phone... would using a 3rd party camera app fix some of these problems?