No, it would be written into the code and unalterable except by a developer fork. The reason they mature slowly is to stabilize the coin supply and prevent massive dumping. Additionally, slow coin maturation encourages investors to stay involved with the coin for the long haul, rather than just looking for a quick pump & dump. However, you should also remember that your percentage of total coin supply will not change during the initial phase of coin distribution, so your relative Core wealth remains the same no matter how many coins have matured.