One way I think about airshow acts is do they have a screamer or not? Can you imagine going into the Louvre Museum and as you are admiring one of the great masterpieces, someone comes up and starts screaming in your ear about how great what you are seeing is.
A lot of the acts , especially the jet acts have a full time professional screamer. When they come on I try to go inside a building or even leave the field for lunch somewhere else. Fortunately EAA has made some days more jet days so it is not totally random.