Time to sell
Based on hundreds of sold lots, we find that most items in a lot are sold in under 90 days, many of which are sold much earlier. The reason we set the "Time to sell" to "Under 90 days" by default is to allow you as a Pro to have the right timeframe to make sales and overdeliver on your clients' expectations.
That being said, we highly recommend that you aim for faster sales. If you're confident that you'll sell a lot much faster, you can mention that in your application.