Typically, displays such as the Monochrome 1.3″ 128×64 OLED graphic display , are interfaced with an Arduino board via the SPI or I2C bus. The Adafruit_SSD1306 library written by [Limor ...
Typically, these display speed, though some also throw in a tachometer or navigational graphics too ... and running a small OLED display. The ESP32 is then charged with running the LED display ...