I have a hotpoint . I have a hotpoint freezer 8721. The top compartment is consistently freezing

Question

I have a hotpoint freezer 8721. The top compartment is consistently freezing up really quickly, which makes it difficult to close the door,which ultimately means im forever defrosting the freezer. I have altered the freezer settings to Economy and obviously not fast freeze, is there anything else i can do, is there another setting i can change that ive missed?Many thanks