can you make this faster?

here is the code... is there a quicker way to do this?

Private Sub Worksheet_Calculate()
Dim Target As Range
For Each Target In Range("p4:p34")
If Target.Value = True Then
Cells(Target.Row, "G").Resize(1, 24).Interior.ColorIndex = 15
End If
If Target.Value = False Then
Cells(Target.Row, "G").Resize(1, 24).Interior.ColorIndex = xlNone
End If
Next
End Sub