high cpu use after x11 updates

[AN]

Hi:

FreeBSD FBSD_13 13.0-CURRENT FreeBSD 13.0-CURRENT #93 r349104: Sun Jun 16 
08:41:26 EDT 2019 
root at FBSD_13:/usr/obj/usr/src/amd64.amd64/sys/MYKERNEL  amd64 1300031

After recent updates to several x11 ports, the process /usr/local/bin/X 
seems to be using a lot of cpu resources.  Historically I seem to remember 
X using something less than 1% cpu on this machine.  Here are the related 
ports that were updated recently:

 	+ x11/libxshmfence (libxshmfence-1.2_4 -> libxshmfence-1.3)
 	+ x11/libXext (libXext-1.3.3_3,1 -> libXext-1.3.4,1)
 	+ x11/libXdamage (libXdamage-1.1.4_5 -> libXdamage-1.1.5)
 	+ x11/libXcursor (libXcursor-1.1.15_2 -> libXcursor-1.2.0)
 	+ x11-toolkits/libXmu (libXmu-1.1.2_5,1 -> libXmu-1.1.3,1)
 	+ x11/libXrandr (libXrandr-1.5.1_2 -> libXrandr-1.5.2)
 	+ x11/libXvMC (libXvMC-1.0.10_2 -> libXvMC-1.0.11)
 	+ x11/sessreg (sessreg-1.1.1 -> sessreg-1.1.2)
 	+ x11/libxkbfile (libxkbfile-1.0.9_2 -> libxkbfile-1.1.0)
 	+ x11/xkeyboard-config (xkeyboard-config-2.24_1 ->
 		xkeyboard-config-2.27)
 	+ x11/libxkbcommon (libxkbcommon-0.8.0_1 -> libxkbcommon-0.8.4)
 	+ x11/libXxf86dga (libXxf86dga-1.1.4_5 -> libXxf86dga-1.1.5)
 	+ x11/libXcomposite (libXcomposite-0.4.4_5,1 ->
 		libXcomposite-0.4.5,1)

I rebuilt the xserver and am still seeing the same behavior.  Are there 
any other ports I need to rebuild?  What other info can I provide?  Any 
suggestions would be appreciated.

Also, I am using:
nvidia-modeset: Loading NVIDIA Kernel Mode Setting 
Driver 
for UNIX platforms  390.87  Tue Aug 21 15:53:31 PDT 2018
nvidia0: <GeForce GT 710> on vgapci0
and running compiz.


>From top:
21865 root         21   -1  6528M   300M select   4  28:35   6.55% 
/usr/local/bin/X :0 -auth /root/.serverauth.199

Thanks in advance for any advice.