Automatic transmission delayed engagement?

The first thing I would do is run the codes and if there are none I would service the transmission with a new filter. Also have you checked the transmission fluid? Here is a guide to help you check the fluid level and condition also I have included how to on your car in the images below.

https://www.2carpros.com/articles/how-to-check-and-add-transmission-fluid

Recommended fluid 4 SPD .................... Nissan Matic "D" (Continental U.S. and Alaska) or Canada Nissan Automatic Transmission Fluid

NOTE:Dexron III/Mercon or equivalent may be used.

Recommended fluid 5 SPD .................... Nissan Matic "K"

This guide can help as well:

https://www.2carpros.com/articles/how-to-diagnose-and-fix-an-automatic-transmission-that-wont-engage-gears

Check out the images (below). Please let us know what happens.