The FBI's Authentication of 100 Biden's Laptop

The FBI didn't even do that initial part correctly by opening a preliminary investigation first because they had dubious information and then they didn't verify it. The whole country suffered for years on that fraud. Let's fast forward to the next presidential election 2020. Your FBI had 100 Biden's laptop in December 2019. John Solomon says it was completely authenticated and verified in the spring of 2020. I would think that the FBI has the ability to authenticate a laptop within probably 72 hours. Am I wrong?