Running 8.5.0 WMWare Fusion, and Mac OS X Sierra vs. 10.12 on Late 2013 13" MBP Retina After upgrading to Sierra, there is a mouse tracking issue in windows 7 virtual machine. When moving the mouse it tends to slow down quicker then your hand on the mouse. Anyone else face this? What can I do? It makes Excel unusable. Over the last few years, so many bugs on Mac, think for the first time in 10 years I'm moving back to PC. I can't take this.