Does there exist one way that can accelerate AD sync from Azure Active Directory

Hi guys

We are trying to develop an app based on Microsoft Office 365. And we need sync all AD info from Azure AD, like All Groups, and all members of them.

In our current design, we use the Azure Cmdlet to sync this info (get-msoluser, get-msolgroup, get-Get-MsolGroupMember), and we have to walk all  groups if we want to get all group members. So we have to spend several hours on this process if the size of Azure AD is very large. 

What we want to know is whether there exists one batch cmdlet that can accelerate this process.

We have already known DirSync can accelerate the sync between Local AD and Azure AD.  Does there exist the similar tool or interface that can be used in our scenario?

Thanks!