xcode simulators are too big?

i just installed an iOS 14 simulator, and in the window, it clearly states the size of the sim is 4.9GB. however, after installing, over 14GB of space has just vanished. after some time, it coughed up about 6GB, but it is still too big. why has so much of my space suddenly vanished after installing the simulator? can i free some space without uninstalling the simulator completely?