Options are always nice, so I'm not completely discouting your idea. I just think that a spell speed slide in the options would take care of it (as long as "Oblivion speed" was the slowest).
Edit: IMO, you're going to get hit with a bunch of pvssyr that may upset you, but this will only upset you if you choose to be upset. My advise would be to completely ignore such comments and focus on the ones that interest you. It's your thread, take control by not feeding the trolls.