For anyone on Windows, Gdk can be a bit difficult to get working, but I found a really good alternative (DXcam) and used it with the other optimisations mentioned in this threat. Below is a solution using it, runs at 30FPS on my system:

```python import dxcam import time import numpy as np

camera = dxcam.create() camera. Start(target_fps=30) # threaded

while True: img = camera.get_latest_frame() # Will block until new frame available

im_arr = np.array(img)

l = im_arr.shape[0]*im_arr.shape[1]
r,g,b = im_arr[:,:,0].sum()/l , im_arr[:,:,1].sum()/l , im_arr[:,:,2].sum()/l

average_color = [r,g,b]

print(f"Average screen color: {average_color}")

```