This implies Xavier’s powers are no longer at their peak, which makes sense considering Wolverine is caring for the elderly Professor when Logan opens.
All of this has certainly taken a toll on Logan and has been a running theme throughout advertising.
The film is set in a time where mutantkind is nearly extinct, and there’s a strong possibility many of the people closest to Wolverine have passed.
It’s long been reported that Wolverine’s famous healing ability is diminished, and he’s got the scars to prove it.