True. It's normal if I use China Unicom as well. It may be some other problem.
BTW - I didn't use Luci, but Command Line to setup OpenConnect. If someone wants to follow, I can share the procedure.
I installed OCSERV on my router running Openwrt. The server is in Hong Kong.
I don't see any major problem, but the speed is rather strange.
If I connect to Hong Kong via China Mobile, I can get 3M to 5M bps for speedtest.
If I connect to Hong Kong via China Telecom, I can only get 0.5 M bps for speedtest.