Tell me if im just being silly, but...

I just got another Williams a couple of weeks ago, and being older and hopefully wiser have not been thrashing the balls of it. But today when i gave it the beans i got just over a ton and it seem there was nothing less in her. Its got a sports exhaust with a de-cat and a air filter.

I know my old 1 had a lot of engine work done but cant remember it being that bad top end when standard.

????????????