I am running WordPress on a Tonidoplug2. It has a slow ARM CPU like a cell phone. So saves a lot of power running this 24/7.
WordPress works super good on it. But the only thing that don't is... If the image is to big it will like lock up. I can pick the image press insert and wait and that window will just go all wight and stay like that. I can click the x and it's in the media and then can insert it then but only one size.
So I guess the fix is give images a little more time to process.