There are some people who won't use XFCE because it suffers from horrible screen-tearing on older hardware. I discovered that if I uninstall xserver-xorg-video-intel, I can solve the screen-tearing issue. I think that driver should either be repaired somehow or perhaps it should be discarded upon installation of XFCE.
xfwm4 4.14 supports both GL (bug 10439) and Xpresent (bug 11126) to prevent tearing.
*** This bug has been marked as a duplicate of bug 11126 ***