

That’s surprising to hear, for me the latency is not noticeable even over WAN. We’ve had VR capable streaming for years now, and area where latency issues cause physical sickness.
You might have a network level issue. Gigabit ethernet to the host, WiFi 5 or better for the client, QoS configured to prioritize both devices in the router settings?
Having both on a different connection is essential!
If you have a spare router, you could connect it via ethernet to the host and then connect your client to that WiFi.
Host would then be able to maintain its internet connection over WiFi and there would be a separate dedicated LAN just for the stream.