Hi, same issue here. Temporary fix is to lower Windows display resolution from 4K to 1280x720. I'm guessing something has gone wrong where Retroarch is now picking up and trying to emulate at native Windows resolution. I don't know the Retroarch / Launchbox fix yet, but after bumping resolution back up to 4K with Launchbox running, games still run fine.
ROMS are running slow now
in Troubleshooting
Posted · Edited by johnnyclash
added info
Hi, same issue here. Temporary fix is to lower Windows display resolution from 4K to 1280x720. I'm guessing something has gone wrong where Retroarch is now picking up and trying to emulate at native Windows resolution. I don't know the Retroarch / Launchbox fix yet, but after bumping resolution back up to 4K with Launchbox running, games still run fine.