140R (Xfce) is too slow

Hello, I have a Dell Latitude that works flawlessly with NomadBSD and Openbox.
However, the latest 104R with Xfce is unusable because Xfce is not “reactive” and the system is too slow.
There must be some bug in the X11 setup, because I get several warnings/errors on startup.

So I had to switch to GhostBSD+Xfce, which works perfectly on the same USB stick.