That 36 MB/s has to be sustained from PSRAM to the LCD DMA, while the CPU (and LovyanGFX, used for graphics) are also writing ...
Sakura Pi RK3308B is a small, Raspberry Pi Zero-sized SBC with an RGB LCD interface and support for mainline Linux ...
Right-click on the desktop and select "Display Settings" from the context menu. In the "Display Settings" window, you will ...