I have personally observed coastal marine deposits several meters thick, with at least one unconformity, with index fossils in each layer, and different lithology in each. How is that possible to deposit in a year? Or even a few thousand? And I have a few tens of thousands of fossil mollusks sitting within 5 meters of me that would get smashed if there were a violent flood depositing them.
Yes, because if the radiometric decay rates were much higher it would either vaporize the planet or preclude atoms from existing.