It would not matter whether you prefer hiring a large courier company for quick package delivery or small courier company. It would be pertinent to mention here that both the courier services have been adequately trained to deliver your package in the best manner possible. It would not be wrong to suggest that both the firms would be updating their courier systems with latest advancements for the overall satisfaction of their customers.
Most courier services shipping from singapore to malaysia would claim quick delivery package. However, they would not be able to deliver before the actual time that would be required I transit from one nation to another.