I do not believe you can complete distance learning faster than the residential! The majority I know spent at least and average 12 - 15 months on the distance learning, and that was hard work.
I did mine at London Met, it took exactly 6 months to pass them all, it is better residential if you can afford the time, the cost is not that much more, in addition the learning objectives do get explained quite good, instead waiting for email reply to solve your problems.
Sure there are some that have completed their 14 distance learning exams within 6 months, but for sure that would not have been me.