...you have to be really a bit more detailed about your setup, because I did more than just 58 neopixels with no issues what so ever.
What processor board did you use? Please share your code... '...going back to Arduino...' hints to me that applied big-loop coding... and that's not flying at all. Going event driven, you would have left you plenty of cycles left for even more things to do. Nails need Hammers, Screws need Screwdrivers, and Events need even oriented programming style.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
...you have to be really a bit more detailed about your setup, because I did more than just 58 neopixels with no issues what so ever.
What processor board did you use? Please share your code... '...going back to Arduino...' hints to me that applied big-loop coding... and that's not flying at all. Going event driven, you would have left you plenty of cycles left for even more things to do. Nails need Hammers, Screws need Screwdrivers, and Events need even oriented programming style.