Well, it's all academic.
There are only three routes available to you; 7A, 8A and 9A. Anything other than the A4 laminated "stick drawing" map with one of those numbers at the top is invalid - and an examiner doing anything other than those should be reported to Chris Caine at the CAA.
There is a maximum time for each, 7A is 90 minutes, 8A is 73 minutes and 9A is 92 minutes.
The test can be done at your own pace, so it goes as fast as you want it to. Somebody who has learned the material and knows what they are doing can rattle through it, quite professionaly, in 20 minutes or so.