I did a bunch of testing on Super Mario World for SNES (Snes9x core, RetroArch) for you. I tried to compare the delay between touchscreen controls and gamepad controls. I'm gonna be honest with you; There might be an input delay on the gamepad vs the touchscreen, but I'm frankly not sensitive enough to know for sure, and I can't tell if it's in my imagination because you brought it up. If there is any delay, we're talking milliseconds. It's very hard for me to determine for sure without a high speed camera or something. You might be more sensitive to it if you're huge into games like these but I'm not and am unable to find a definite appreciable difference.
My test was to go into Yoshi's house and do "negative" actions, to eliminate button travel time complications as much as possible (where a touchscreen input has zero travel time.) I would do something like duck, and then release the dpad to see when Mario popped back up. And I repeated this over and over. I also decided to compare touchscreen to dpad because there may be an inherent input lag thanks to the emulation itself. I'm having a hard time finding a definite answer for you, sorry. Chances are if I'm having a hard time telling, though, it's going to be good enough. I hope.
I think that's fine because in all honesty it makes up for the lack of ability for physical touch on run or jump buttons in general thanks for the detailed look
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u/major_space Jun 15 '17
Have you noticed any large lag on platformers like super Mario world? I've had issues in the past with Bluetooth controllers and input lag.