May be caused by this: https://www.good-display.com/news/79.html  Increase time between SPI setup and display writing (font rendering takes a long time, during which the display is already awake)
May be caused by this:
https://www.good-display.com/news/79.html
Increase time between SPI setup and display writing (font rendering takes a long time, during which the display is already awake)