I'm wondering if a super gameboy 1 with a timing fix is allowed? I've installed a board on my super gameboy run that fixes the timing to run at the correct rate and want to know if its banned.

I am unsure if this would invalidate a run or not. But you’ll get an answer more quickly if you join and ask this within the PSR discord: https://www.speedrun.com/pkmnredblue/thread/7y1ru