I had a similar problem. After upgrading to Xubuntu 17.04, the mouse was too fast but settings had no effects. I solved this problem with xinput. See comments in this bug report (may be a duplicate):
https://bugs.launchpad.net/ubuntu/+source/unity-control-center/+bug/1683145
I had a similar problem. After upgrading to Xubuntu 17.04, the mouse was too fast but settings had no effects. I solved this problem with xinput. See comments in this bug report (may be a duplicate):
https:/ /bugs.launchpad .net/ubuntu/ +source/ unity-control- center/ +bug/1683145