I am currently using iMXRT1064 controller with Emwin graphical library and 800x480 7" LCD with RGB mode.
Does the iMXRT1064 support any hardware acceleration capability for drawing of bitmaps so that the drawing can be faster?
If not then are there any other options by which the drawing on the LCD can be made fast.
Please refer to the application note below. In section 4.2 there are a few tips that can help you to improve performance.