...edit; PS if annyone believes that LM has this issue tackled they might wonder why for the last 3 months LM has been very actively trying to recrute specialists to solve just this one task.
LM would be recruiting people to assist with the integration of the HMS with the rest of the sensor suite, but not for its "development" nor to sort out any of its latency issues.
The HMS is an Israeli system with some UK (BAE?) input, and as such is being "developed" outside of Fort Worth.
Anyway, the latency issues are all but resolved, and the helmet just needs a solid real-world workout in low light STOVL ops to validate the fixes.