I am guessing you had this set by a tuner ?, and they took logs whilst doing it ?, prob not wise to mess with it as they should have used he best settings.
I run boost 9, which is more aggressive, you could try that. Are you running a updated inter cooler ?, wouldn't change the timing. 5 is about right.
Fuel is about right, each car is different so if set by a tuner don't change it would be my advise !