I purchased an AC750 TL-WR902AC to create a private WiFi network from an existing Public WiFi network. When using the device in "Shared HotSpot" mode and present a different SSID to connect to, my download speeds are ~10% of what they are if I connect to the WiFi directly.

For example, if the network SSID I'm connecting to to create a hot spot from is called PubNet. I connect to that with the TL-WR902AC and create a SSIDs called TPNET & TPNET5G.  If I connect to PubNet directly, I get ~220MB down / 15MB up, but when I connect to TPNET or TPNET5G, I get ~25MB down / ~12MB up, occasionally much worse. I've tested using several external WiFi networks to test if it was specific to the ones I need it to work on, as well as my home network, and all behave the same. It also doesn't matter which device I use to connect to TPNET or TPNET5G. All speed tests, streaming, etc. are very poor. I've also seen extremely poor downloads in the KB range when connecting to TPNET or TPNET5G making it unusable, and if I immediately switch my device to the PubNet WiFi, I get the performance I expect. 

Any and all help and insight appreciated.

Thanks.