I have a Rpi B+. using a PS3 controller over BT. Using a 32gb sony uhs1 microSD card

Installed Raspabian then Retropie on top of that. I have a script that runs before ES starts to check for a controller if it doesn’t find one it checks till it does then allows you to continue to ES.

However performance of the machine is slow. NES emulator specifically. It’s slow and there are sound issues. Genesis isn’t quite as slow but there are still sound issues. Here are the things I have done to help improve the preformance. N64 won’t run at all, I can hear sound but I see nothing.

Changed the GPU memory settings in /etc/boot.txt tried 256, 384 no difference. Some people suggest 128 but ES doesn’t run with that.

Changed the video settings in the es_systems config to run NES games (retroarch) in mode 1 (480p). This didn’t make much of an impact.

Took out WIFI card. This seemed to work at first but it no longer has an impact on performance.

Changed the overclock settings to turbo. I did a back to back comparison with turbo and medium and there was no change in performance when using retroarch for NES.

Changed the sample rate in the retroarch config to 44100.

Changed the audio driver for retroarch to SDL. This brought up an error in retroarch and it must have reverted at runtime to the other audio driver because I still had sound but it said it couldn’t find the SDL driver.

If I could atrribute the slowdown to anything I would think it started around the time I re-installed mupenplus through the retropie setup from source.

Not sure where to go next. Thanks in advance guys. Let me know if you need any files or settings info I’ll post whatever.

Jeff