I would recommend not using LACP if you're licensed for a vDS but instead use VLANs and different port groups along with NIOC and the teaming policy of route based on physical NIC load (also called load-based teaming or LBT) to accomplish utilization of the two remaining 10 GbE uplinks. It is a common misconception that LACP is the only way to utilize two different uplinks simultanously. With ESXi and a vDS, LBT is a better option that requires less complexity on both the switch side and vSphere side.
Thanks for your reply. So use route based on physical NIC load on all port groups on the vDS including the vMotion port groups?
With vMotion, I tend to use multi-NIC vMotion and alternate NICs in the team so each vmkernel port is active for only one NIC and standby for the other. This gets inverted for the second vmkernel port tagged for vMotion, thereby utilizing all the uplinks in parallel.