We've worked hard to make SocialEngine PHP an optimized, lightweight platform. The performance of the platform however is primarily dependent on the capabilities of your server. As with any web-based application, you may need to upgrade your plan if your social network attracts a large amount of traffic. It would also depend on the activities of your users; for example, if your users are uploading large amounts of media (photos, videos, etc.) you may need to upgrade the disk space on your plan. On most plans, Managed SocialEngine PHP service should be able to support tens of thousands of users to upwards of one hundred thousand and more, however we make no guarantee of performance due to the many variables involved.
