We have come a long way in refrigeration in my lifetime and it keeps getting more and more efficient. I am going to go over a couple of topics that will improve performance of your refrigerator.
Boundaries- think of your white or silver shelf edges as boundaries and do not exceed them with food.
Most times I go out on a frost in freezer issue the door wasn’t closed correctly or the food ha d been pushing door out after closing later on. If you heard anything but the drawer when you closed your fridge, it needs to be re-packed.