ID:14579 Pin <name> uses I/O standard <name> located at <name> will have lower speed performance due to its location. Refer to the product datasheet for the supported I/O speed.

CAUSE: The Fitter tried to place the specified I/O pin to a pin location that has lower speed I/O attribute. Refer to the product datasheet for the supported I/O speed.

ACTION: User or modify the location assignment if your expectation is to use regular speed performance for the pin.