fans are not happy with the football played

FM 2015 Any one had this issue

Hi Can anyone tell me why my clubs fans are not happy with the football being played
even though my team has been winning most there games the fans are not happy with the football played they find it les than exciting
my team are free scoring and winning games on average 3/4 -0 in a very fluid passing system 4-3-1-2 WB.

I can't imagine why any football fans would not be happy with lots of goals and winning football games.
I don't think it maters to the clubs board as its not ever come up I am to improve this but I my self don't like it
and want to fix it.

Thanks