Why, oh why, is anyone lending any credibility whatsoever to a test/debug version of software?
Do you guys have any idea how many debug traps that programmers drop into code to log events, throw particular errors, capture information, etc., all in the name of software development?
Debug and testing software is NEVER fast from point A to point B. The reason is because if something breaks in between point A and point B, the developer has to know how, why and where. Consequently, debug versions of software are constantly writing logs and doing special checks so that if it breaks, they get information.
All of this is pulled out when the final version is compiled to improve performance. Heck, look at the HP TouchPad. They left in a lot of the software logging and turning it off resulted in a tremendous performance improvement on the tablet.
Pre-production benchmarks are not worth your time worrying about.