Rough comparison of input lag in the PS4 Capcom Arcade Stadium versions of Progear and Gigawing on my set-up, which includes a Hori HRAP V 2017 arcade stick and a 5ms display lag monitor. On a computer, if you're playing this video at 60 fps, you can pause playback, then advance one frame at a time by pressing the "." key, and count along with me the frames that go by between the arcade stick's button being fully pressed down, and the shot beginning to come out of the ship--just make sure the video playback quality is at a 60 fps setting in your YouTube player.
I counted 5 delay frames in Progear, and 7 in Gigawing.
This is a totally unscientific test and only really relevant to the performance of other games tested on my current set-up. I recorded the video on my Google Pixel 3a phone, with its Camera app set to 60 fps recording.
0:00 - intro
1:45 - Progear firing
5:08 - Gigawing firing
8:48 - disclaimer - this is a crude local test for my own comparisons
Capcom Arcade Stadium uses the MAME emulator, inside Capcom's RE Engine; due to rights issues at the time, Capcom had to write their own sound cores for the emulation, rather than being able to use MAME's.
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