Extra facts just for fun: Rapid-fire (for x-bows), multiple shot crossbows were invented and in use in China from the 16th century to the late 19th century at least.
There is a website with 10 or twelve-shot version used by peasants to defend themselves.
Basically the bolts were stored in a magazine above the groove and would drop down as the previous bolt was released. You wound the blighter up
once and the tension was sufficient until the entire magazine was emptied.
Short range only and wildly innaccurate.
Besides materials and physics in Tamriel are not necessarily exactly the same.