Plug-in load balancing w/rollback

I just rolled back to a version where the Plug-in load balancing feature wasn't available. I see it's still in that mode & but this version doesn't have the option to enable/ disable balancing in prefs..
I assume the only way to turn it off is to go back to a newer version that had the feature or is there a tweak?
Not a major issue just curious.
Thanks