SFT1200 on cable connection to home modem and sending out wifi.
For maximum speed, can you try the "LAN (ethernet) - LAN (wifi home)" setup?
It avoids the limited CPU power for ethernet-ethernet (only switch involved), and avoids the WAN-LAN processing in the CPU for ehernet-wifi connection.
It's non-trivial I know. But superfast LAN-ethernet-wifi connection works on almost any wifi router independent from it's WAN setting (router-extender), but be carefull to avoid DHCP conflicts. (disable SFT's DHCP server)