Are Jade Plants slow-growing?
Yes they are somewhat slow, especially as a houseplant. If you wanted to push it faster, put it outside in full sun after your last frost in the spring, and leave it out as long as you can before the first frost in the fall. This will give it a whole lot more light and air than it would get in the house, and it will grow faster. I think that in the house you can expect it to grow a couple of inches a year.