I believe RF based wireless headphones (like my Arctis 7 headphones) don't have this latency in them due to not being Bluetooth based.
There is some patented codec I think that does allow low latency bluetooth streaming (forgot the name) but that's not heavily implemented in my experience.
Old-school BT headsets are low-latency enough, afaik. But yeah, just blasting the Opus directly from the network to the headphones would solve it, even re-coding in low-latency configuration only adds 5ms.
There is some patented codec I think that does allow low latency bluetooth streaming (forgot the name) but that's not heavily implemented in my experience.