DSN = Datasource Name.
DNS means something completely different so it's best to get terminology right to avoid confusion.
Have you defined a name for your application? It sounds like ColdFusion might be rebuild the application on every request.
At the top of the Application.cfc place this:-
<cfset this.applicationame = "myApplication" >
There are a few more settings that you can define here but look those up on Adobe's online docs.
You don't need the DNS1 = "#application.dsn#" either. All your doing here is duplicating variables. Just use application.dsn directly and it's less for you to manage / remember then