My first question in this situation would be, what sights does CZ recommend are used for the rifle?
I think your problem isn't the rifle, it's the caliber vs. the sights. AR-15 sights are designed for, well, the AR-15. A 55 grain .223 bullet will travel much faster and therefore drop much lower before reaching the target. A .22 grain bullet is doing about 1150 to 1250 feet per second out of the muzzle vs. somewhere around 3000 fps for a .223. Essentially what's happening is your .22 bullet is dropping off much faster than a .223 bullet and therefore never intersecting with your sight plane. Your best bet would be to call up CZ and see what they say about sighting in the gun. Next stop would probably be a 1/4" or a 1/2" riser.
My better suggestion, unless your daughter is really young, try letting her shoot a real, .223 AR-15. In my experience, girls handle recoil very well, sometimes significantly better than guys. If your daughter is 10 or older, take all the flashlights and "tacticool" stuff off your own AR (the weight will do more harm than any recoil it might dampen), and let her try it.