Crowpanel 7" twitching screen when sound played with speaker

Hello,
I am using a Crowpanel 7" with a speaker connected on the SPK port.
I noticed that when a sound is being played on the speaker (using the library ESP32-audioI2S-master, following the tutorial on https://www.elecrow.com/wiki/ESP32_Display_7.0-inch_HMI_Arduino_Tutorial.html#example2-play-music), the displayed screen twitches from left to right, like there is noise on it.
Is it an issue known to you, and if so, do you have a solution on how to solve this, please?
Have a great day,

• Mehdi