Hi,
Galaga on MAME 0.225 is lagging fire 200-300 ms since you press the fire key to when it's really firing. This is a Dell laptop with i7 CPU and fully updated Windows 10, tried also on HP Envy with Ryzen, exactly same effect. It's very hard to play. Lef/right movements are fine. System power options set to high performance. Sound is perfect, no frame skip, emulation speed 100%. Just the fire is delayed. I tried remapping fire key to a different one to check if it's the culprit, no change. Tried MAME64 and MAME64UI, same results. Tried various Galaga ROMs, no difference.
For casual player it may not be a problem, however I'm making 2-3 millions on a real arcade machine and on MAME I can't exceed 200,000 thanks to this glitch...
Did anyone experience this, can it be remedied somehow? Are there MAME devs here? Tried various MAME settings already, generic optimization hints which can be found by googling, no improvement.
I tried to show it on the attached video, but don't know if you can see it. I'm hitting the fire button hard so that you can hear the key sound and when it's actually launching a bullet and making a sound in game. I think it's easy to reproduce.
I've also tried older MAME versions, same behavior.
Please help
https://www.youtube.com/watch?v=lvxGFH5WVkU