ID:22266 Core clock network driver <name> is constrained to region (<xmin>, <ymin>) to (<xmax>, <ymax>). This may result in a longer insertion path and increase Fitter runtime.

CAUSE: A placement constraint on the specified source node may prevent Fitter fitter from selecting an optimal location. This may result in a longer insertion path to the clock network, and may increase Fitter runtime as it tries to find a legal route.

ACTION: Consider removing or relaxing the specified constraint.