@Airjarvis,

Your connection is guarded a bit more when it is on the main network, but it shouldn't be effect should not be seen.

I would first recommend trying to change the DNS server of your network. While this should affect all wireless networks, you may still see an improvement.

Do you see any other slowdowns in performance other than social media? such as when streaming videos?

How many devices/ active connections are on your network?

You may try temporarily set the devices as a High-Priority device in the QoS settings, this should help improve your overall performance.

Lastly, if this behavior is only limited to iOS devices, I would recommend navigating into your phone's network settings and disabling MAC addressing.