Residence Visa Processing time through Seattle/US TECRO

I am preparing to apply for a Residence Visa through the Seattle/US-TECRO. Does anyone have experience or an estimate on how much time it takes to obtain or receive the Visa after you have submitted the application with all required documents?

I need this in order to plan and book my flight to Taiwan. Thanks for any input!

It depends on the TECO but I’m guessing it should take at least a week?