Hi,
Experencing exactly same issues, high CPU usage for vmx-svga running esxtop. Tried multiple things already. Temporary workaround is setting our pools "Refresh OS disk after logoff" to "Always". Definitely helped a lot, because issues usually are not occurring on the first day or within the first few hours.
Case is still open, was recently moved to vSphere-Team.
Quick solution would be very appreciated...