Quote Originally Posted by Greg2600 View Post
For years and years, it was not. NOW IT IS!!!!!!!!!

http://neslcdmod.com/
https://www.patreon.com/neslcdmod

Thanks to Alexey in Russia, he's begun modding NES roms to adjust the delay settings! Several have tested and report great results. One caveat, the original zappers are too primitive, this needs a better LED, and it's suggested to use a modern 3rd party zapper like the Tomee.
I always thought something like that should work. Pretty sure I mentioned it on here years ago. It's cool that someone actually did it. I'm just a little surprised that it wasn't Nintendo figuring it out themselves for the NES classic.