Interesting, I'm finding the opposite - things taking much longer to arrive (4-7 days longer) than usual.
I expect it too, as lots more people are ordering things online, so they have a lot more to do than usual. Plus staff absences must be (relatively speaking) far higher than before for a multitude of reasons.
Amazon are now delaying all non-essential deliveries for a month or more. Place an order now, and depending on what it is, it'll be here in May. It's not clear what they define as non-essential.