I recently bought a 7 inches TFT screen with a shield for a Mega :
My project is a dashboard for a race motorcycle. It works well “graphically”, touchscreen ok, but it’s too slow for this application, especially the big fonts displaying the RPM (four characters, 40x60 pixels) taking approximately 113ms.
It would be nice if it can takes less than 20ms, ( i won’t display it every 20ms, just to have extra time in my loop to do other things) i thought about using another library, modifying this one or using an Arduino Due.
Can someone help me ?