15ms = shit!
i recommend:
Linux RT Kernel + Vulkan
ALSA sound, no Pulseaudio
ALSA = Lowest audio Latency
all top500 Supercomputers use LINUX
IBM PS/2 keyboard+mouse, direct interrupt. (USB=crap)
finally: VGA/analogue/CRT monitor = Lowest Visual Latency!
ideally, VR and other low-latency gaming should use ANALOGUE signals, similar to CRT.
i think we should explore analogue once again for lower latency visuals … especially for VR and Gaming
the HUMAN BRAIN and VISION is more like ANALOGUE, NOT DIGITAL.