Does anyone integrate Microsoft Azure SSO server with AEM as client

Hi,

We are starting the integration of OAuth integration into aem with Microsoft azure , we are able to integrate by using Out of the box OAuth provider. 

By default , user token is getting stored in aem and used it validate user.

We will be having 15k + user signing into the system , is it wise to store such number of token inside publisher ?

Is there any other way we can build the integration performance wise and we should not waste aem memory so much.

Any suggestions for this scenario. I would really appreciate it.

Regards,

Poovitha S