Hi, this is quite specific, but seemed odd:
I noticed that if I use the overlays sms.cfg or genesis_and_sms.cfg (when switched to using the SMS variant using the button) there is noticeable input lag in landscape mode.
Sometimes the button does not respond at all.
I used Krusty’s Super Fun House for the Sega Master System and tried Genesis Plus GX, SMS Plus GX and PicoDrive and all behaved the same.
If I play in portrait mode there is no lag, but if I rotate and play in landscape mode, and use a Master System overlay, Krusty jumps with noticeable lag. Button 2 is used to jump.
When using the genesis_and_sms.cfg overlay but with the Mega Drive overlay variant (ABC), the buttons still work, I can jump with no lag. Even though it is using the same cfg file.
I am not sure what could be causing it, perhaps the overlay graphic is too large or something?
I am using v1.2.1 with the cores and overlays up-to-date.
I can just use another overlay, but perhaps someone may know the cause.