Hey, I used to run on an older retroarch version from the middle of 2016 and was then still using the Mednafen PSX core on my Shield TV.
Everything worked perfectly (even at 2x res) and now I finally updated, using the new beetle core and both of those cores run like absolute garbage now, we are talking like 5 fps that once used to run at fullspeed.
Can someone explain to me what happened here? Is there some new extreme setting I am not aware of? Is there a way to get the old core back or make the new one work? I mean, it’s insanity to think about that the core could have changed so much that I lose like 95% performance.