Why do I get different results from profiler in Visual Studio 2010 RC

I have setup 1 project in VS2010 RC. A workflow console application that simply counts from 1 to 10000 and writes each number to console. When I开发者_开发知识库 execute "F5" this application it takes minutes to finish, but when i execute this application with profiling it finishes in 3-5 seconds. Does anyone know why?

Found why, Because of the VS2010 debugger. When I build the application or launch without debugging it finishes in 3 seconds.