ESPN reported on Saturday that Bale is drawing the ire of his manager after a poor, injury hit season last year, and his poor record so far this season.
He further angered Real Madrid fans on Friday by turning up to a marketing event and not speaking in Spanish, drawing boos from the crowd that attended.
However Zidane understands that it might take time for the Wales international to return to his best form.
"He had four months out of the team, and to return to his best level he will need four more months at least. We must give him time, and we are happy with him."
"We want more from him on the pitch, he does too, but he will be very good very soon, for sure."