I've done all of the above except for the max terrain distance in my alts.

If I look at their indicators its about the middle so its not maxed but not min either. If I try and fiddle with it however it just resizes my window and doesn't put it back in the right place and I have to start it over with the old settings.

Anyways around this?

This problem isn't just with follow now that I am really paying attention to what is going on but sometimes its when combat starts/ends etc? EG: I'll cast LB on all my shammies and I will see them all hit but on all my screens main + alts it sometimes take 1-2 seconds for the damage to register and the monster to die.

Any particular reason why my machine might be doing this? I don't ever see any lag spikes or FPS drops when switching screens or anything or even in major cities my setup doesn't even drop FPS so I'm not sure what this kind of "delay" would be.

I checked out my CPU and RAM usage and they are all below 75% on my machine so that really shouldn't be the issue either.