SNES Performance Tweaks

[Flavor]

I ran some tests using an image from lion2, but I couldn't notice any stuttering. These were mostly done with Super Mario World, but I tried the other games we mentioned, too.

RPi: Zero W v1.1
INPUT: FC30
PC Monitor: 1680x1050 (no noticeable problems)
TV: 1360x768 (no noticeable problems)
TV: 1920x1080 (no noticeable problems)

After those tests, I connected to WiFi and tried the 1680x1050 monitor again and still no noticeable problems.

Just as I was writing this, I still had SMW intro running (for like 15min already) and I heard an audible stutter just real quick. If that was your issue, I think you wouldn't even notice/care.

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The reason that I wanted to try multiple monitors was to see if different resolutions could cause the problem.

I just went back and watched your video, and I have definitely not noticed anything like that with the image you sent. Also, your video reminded me that you were experiencing these issues with no peripherals connected.

I feel like this points to SD or Pi as being somehow different. Where have your purchased your Pi Zeros from? Do you feel like it was a reputable source?

I'd ask the same for the SD card. I know that the SD shouldn't affect game play speed, but if the OS is trying to read/write the SD card and it's ultra slow, I think it could (in theory) cause stuttering.

When you got your second Pi Zero, did you do any soldering on it, or did you just plug it into the TV and try it there?

I'd really like to get this solved. Would you want to trade a Pi and/or SD card with me if we can't figure anything else out?

Edit: I just tried it with a different (smaller) SD card, and I don't notice an obvious difference. I thought I had some cheapo SD around here, but I haven't found it.