Theres no difference, if he has stock on hand, you'll get the tracking fast. If he doesn't then he needs to order it.
Ive gotten my tracking within a few days so far but depending on what you order, sometimes you can guess if it'll take longer or shorter. I ordered some rare meds this time round, and as expected, it took longer.
I took a quick look at my previous orders.
With n=2 sample size, it usually within 2 days.
First order was about 3k tabs and 2nd around 1k tabs.
However like what
@OldmemberNewcuenta mentioned, it depends on stock availability.