I don't know what causes it, but a dealer who I respect once told me that within reason the lower the speakers are in respect to your listening height the higher the image will be. I can't swear that is true, but it's not unusual for the image to be higher than the speakers. In fact. it is quite common.
Just think of it as a performer up on a stage and enjoy yourself.
Just think of it as a performer up on a stage and enjoy yourself.