I have observed your comments and like to share with you that it is a well known issue and in most cases it refers to Java restrictions. I request you to please share with us the presentation which you are using for testing, along with the code snippet which you are using to check the presentation loading time. Please also share with us the results when,
a) code compilled without debug info
b) target platform is Oracle JDK 1.7 on Windows (same machine for .Net test)