Read a few posts before, we have been discussing this, that reddit thread is lacking the info we have here...Thank you for posting this. Does this actually fix the issue? Does this mean that you are getting the higher res 4k image AND the lower input lag (~25.8ms) by doing this restart trick? Or is it just flipping back to the higher input lag that others have measure (roughly double what is claimed)?
It's just a software bug, whenever the output image is at 4K resolution (which is defined in windows as the native resolution even tho the dmd is 1080p native) the latency is close to 50ms, @awest74 tested it in more detail already, optoma should rename "Enhanced gaming" to "Disable actuator", imo EG basically disables 4K output, thus achieving higher framerate and lower input latency.
Even tho @OPTOMA PM DUDE stated that the projector is not doing any downscale of the 4K input to 1080p because that would use up more resources (which i would generally agree), it is looking like using the actuator to get the 4K output is even more taxing on the system than downscaling and produces way more latency than downscaling does.
Hopefully, is another software bug that skipped through the cracks and like he says they're really investigating this and it will get fixed in a future firmware update... wishful thinking!
Anyway, this really feels like a rushed out projector build, an over 1000usd piece of equipment and they didn't even go to effort of designing a dedicated remote control and left 3 unused keys on the remote for inputs that don't even exist... plus confusing and cryptic descriptions of functions in the user manual and some in there that probly aren't even a feature of this projector, what a sad joke.