I think simulated slowness is probably better than actual slowness. Something like a javascript file you could include that would hide all the content on the pa

I think simulated slowness is probably better than actual slowness. Something like a javascript file you could include that would hide all the content on the page and show each element at the same speed you'd see with a throttled network. That way you could still display a message about why it's happening, etc. and it's much easier for the average developer to implement.