When i done FP i was out within 1 hour 30 mins same with gen nav took about 1.20, but most guys took about 2.30 hours to do the exam, but there are things you can do to help you with time, like in you Jep man, but them yellow sticky notes and label certain things like the sids and stars ie write heathrow so instead of flicking with your manual you have it there bang,
If you want some more tips PM me, I have loads for that exam, and a useful breakdown of the bristol questions,
Cheers.