Ranged Mobs Attack Speed

Is there a way to make ranged mobs shoot slower? I created a dark elf that shoots lasers, but it shoots too quickly. I want it to shoot about as fast as a skeleton, but I don't want to use the skeleton A.I. because it will drop bones and arrows. Is there any way to change this? Also I think this would be a good thing to add in a new update to Mcreator.