Slightly tricky one this to my mind. If you are flying a SID then follow the tracks specified in the procedure. The controller should take account of the difference in performance characteristics of a light aircraft when compared to the types that more commonly use the procedure.
If the controller wants you out of the way you'll be told what heading or track to fly. So, if you're not given any alternative instructions, fly the SID.
If you really want to, ask for an early turn if this will make things easier for you. But you asked in the context of an exam - remember that if you deviate from a published procedure you become responsible for assuring terrain clearance etc (which is otherwise built into the procedure if you meet the climb profiles).