VMware has released vCenter Server 7.0.0d, this fixes a problem with high CPU usage on the vCenter server 7.0.0c.
After you upgrade your vCenter Server system to vCenter Server 7.0.0c, CPU usage continuously stays high. On a single core, CPU usage might spike up to 100% for hours. The Workload Control Plane service causes the issue, even if you do not have Workload Management enabled in your environment
See the release notes here.