i dont get it. Are you saying that you wanted to change to Ipad 4 with lightning connector? Because Ipad 3 use 30 pin and i believe it takes around 7 hours to fully charged.
But just to answer your question. No, Lightning cable did not make charging or transferring apps & music any faster. Its just Apple way to make more money from your pocket by changing the cable. Because if they just want smaller one to make the device thinner then why not go for microusb type.