As much as this needs to be changed, I don't want to see just a 'slow-mo' mode. Then the animals aren't moving naturally. The way they would have to do it is double the length of a day (to 6 seconds or more) and also double the deterioration rates, time it takes to feed, repair, they'd have to change pregnancy and growth rates, etc.. It's really a big change, but it HAS to happen. These birth-rates, especially, are just ludicrous. I swear I'll see that an animal just gave birth and 5 minutes later it's offspring are giving birth. THATS INSANE!
It's amazing to me that they playtested this and decided that this speed is a good gameplay experience. Not only that, but they add fast-forward buttons to make it even faster! crazy..