WAVESHARE ESP32-S3-RGB-Matrix audio drivers

I’ve successfully compiled a build the above board (32/16 variant) and the excellent WLED online compiler. I have it running 2 HUB75 matrices, both 64*64 p2.5 so a total of 8192 pixels and speed is impressive. So next I am looking to make it audio reactive. I cannot find any support for the onboard dual mic / audio decoder so tried sync with another WLED instance. While the sync works, there is a delay of about a second. All other builds synced to this OG ESP32 work fine including one on an 8266, and another on an ESP32 S3. Ideally, I would like to get this board working with its own mics but wondering if there are any suggestions as to why the delay when sync is used.

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