In a medium-sized mixing bowl, blend the cream cheese, sugar, room temperature sour cream, lemon juice, flour, and vanilla. Use a whisk, and whisk until smooth.
Slowly fold in the eggs, mixing well after each egg.
Pour the filling into the crust.
Add the water to the Instant Pot bowl, add your trivet, and place the cheesecake on top of the trivet.
Place your lid onto the Instant Pot, and place the vent to sealing.
Set manual high pressure for 25 minutes.
When the time is up, do a natural release.
When the pressure has all been released, remove the cheesecake and then place it into the refrigerator overnight.