Hardware SPI for OLED Screen

[dolfelt]

Has anyone here investigated using hardware SPI to perhaps speed up the LCD screen? I've managed to upgrade the LED software to the u8g2 library, which helps a bit, but not much on the performance. Hardware SPI could probably improve that greatly.

The other thing I'm looking into is using the U8x8 character mode that can theoretically greatly improve performance as well, though it doesn't appear to be able to draw anything other than text. https://github.com/olikraus/u8g2/wiki/setup_tutorial#u8x8-character-mode

Any thoughts or help would be greatly appreciated!