Optimize draw_rgb565 display write speed by skipping slow synchronous canvas updates during raw video frames

lib/ili9341.py

@@ -233,7 +233,7 @@ class ILI9341:
                 mono = 1 if lum >= 128 else 0
                 self.canvas.pixel(screen_x, screen_y, mono)
 
-    def draw_rgb565(self, x, y, w, h, data):
+    def draw_rgb565(self, x, y, w, h, data, sync_canvas=True):
         """Draw raw RGB565 pixel data on the screen at specified (x,y) with width and height."""
         # Clip coordinates
         x_start = max(0, x)
@@ -265,7 +265,8 @@ class ILI9341:
                 self.cs(1)
                 
         # Sync the internal 1-bit canvas buffer
-        self._update_mono_canvas_rgb565(x, y, w, h, data)
+        if sync_canvas:
+            self._update_mono_canvas_rgb565(x, y, w, h, data)
         return True
 
     # --- SCREENSHOT ---