I’ve been successfully using Retroarch for several years now and in general everything has been fantastic. Recently, however, I started getting a lot of stutter/slow down when using the Beetle PSX HW core with hardware rendering.
I spent several days tinkering with it and tried the suggestions here and here, both of which are pretty similar to my problem. Unfortunately, the previous suggestions don’t seem to be fixing the framerate issue. If I turn off all shaders it helps slightly, but still suffers from stuttering audio and bad performance. The only “fix” I’ve found is that disabling vsync resolves the problem, but this is not what I want to have in place long term. The other Beetle PSX core runs just fine if I switch over to that. It’s a super frustrating problem since I ran the PSX HW core without this issue for over a year.
Some stats: Windows 10, I7 6700k processor, 16GB RAM, Nvidia 970 (latest drivers from 12/12, upgraded from 388.XX as part of troubleshooting), latest RA and updated cores
Performance issues happen regardless of running on my PC monitor or on my TV (1080p) via Steamlink
Any other tips or suggestions would be greatly appreciated.