Fellow #vSphere admins,
Allow me to draw your attention to this KB:
https://kb.vmware.com/s/article/87837
VCSA performance issues after upgrading 7.0u2 to 7.0u3
"The resolution for this issue is simple and can be run online. We suggest that every customer who has upgraded to VCSA 7.0u3 run this even if they do not currently experience an issue."