I have installed smartoptimizer and the performance improvements have been immeadiately obvious.
There appears to be a singular issue surrounding the JomSocial (Facebook connect) module. Since installing smart optimizer it seems to hang mid way and prevent the system logging the user in.
I have tested by disabling smartoptimizer and all works as designed.
I have attempted to debug myslef but have limited knowledge so any assistance would be gratefully recieved.
Can you provide exactly which page the failure occurs. I have forked to Narimm/SmartOptimizer to allow me to patch