WUDFHOST processor is high on 7X70 model

we are getting some 7470\7270 models. Users are complaining about slow when they use office and other programs on these models. I found out WUDFHOST.EXE is running contantly with higher CPU rate 24\35 as show in attached.

If I disable Intel wireless Gigabit 18260 device driver, it acts normal.

Is there any solution for this.