Show() Function Speed Pi Pico vs. Raspberry (takes twice the time in Pi4)

Hello,

i am having an "Issue" with the speed of the show() function. On a Pi Pico i get an execution time of the show() function of around 46 ms for a 1200 RGBW Led Strip. This is as far as my understanding is correct the expected signal time for this number of leds and colors. Oddly enough on a Raspberry Pi 4 the function takes twice as long. The execution time clocks in at around 90 ms. Is there a reason It takes that much longer? Is the Pi 4 pushing the Data at 400 kHz instead of 800 kHz? Or am I missing a setting?

I appreciate any input! Thanks!

No source file, test, or entry point is named in the issue. Start by reproducing the show() timing for the 1200 RGBW LED strip on both a Pi Pico and Raspberry Pi 4, then inspect the platform-specific configuration and document the cause or required change once the expected timing is established.

Written by the indexing model from the issue text.