Often the rendering of GUI elements happens in an off-device image buffer which is then copied periodically to the device. This can be very slow in python if bi

Often the rendering of GUI elements happens in an off-device image buffer which is then copied periodically to the device. This can be very slow in python if bit-fiddling is involved. Sometimes utilizing numpy for the copy can help a lot. If you want to roll your own, this might be a good starting point: https://github.com/robertmuth/Pytorinox/blob/master/spi_display.py https://github.com/robertmuth/Pytorinox/blob/master/spi_disp... It was written for raspi but should be easy to port.