# Slowdown For Pi 2

**URL:** <https://rpi-rgb-led-matrix.discourse.group/t/slowdown-for-pi-2/238>\
**Category:** Uncategorized\
**Created:** [June 1, 2021, 1:15pm UTC](https://rpi-rgb-led-matrix.discourse.group/t/slowdown-for-pi-2/238 "2021-06-01T13:15:21Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![annapanda](https://avatars.discourse-cdn.com/v4/letter/a/7ab992/32.png) [@annapanda](https://rpi-rgb-led-matrix.discourse.group/u/annapanda)\
**Post date:** [June 1, 2021, 1:15pm UTC](https://rpi-rgb-led-matrix.discourse.group/t/slowdown-for-pi-2/238/1 "2021-06-01T13:15:21Z")

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Hi everyone,

I’m working with the code at this link: [GitHub - hzeller/rpi-rgb-led-matrix: Controlling up to three chains of 64x64, 32x32, 16x32 or similar RGB LED displays using Raspberry Pi GPIO](https://github.com/hzeller/rpi-rgb-led-matrix)

I’m currently getting A LOT of noise even with the --led-gpio-slowdown flag set to the highest setting. I’m using a 32x64 p5 matrix with a pi2, so I’m really surprised that it’s behaving this way. I even switched from my Pi4 to get slower performance to prevent this but I’m still getting the noise. Any tips?

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**Author:** ![marcmerlin](https://yyz2.discourse-cdn.com/free1/user_avatar/rpi-rgb-led-matrix.discourse.group/marcmerlin/32/40_2.png) [@marcmerlin](https://rpi-rgb-led-matrix.discourse.group/u/marcmerlin)\
**Post date:** [June 3, 2021, 12:37am UTC](https://rpi-rgb-led-matrix.discourse.group/t/slowdown-for-pi-2/238/2 "2021-06-03T00:37:29Z")

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I do not have this problem, if I had to guess, it’s something wrong with your panels.