I haven't noticed any amount of slowdown. (Could just be my timing though... I might be signing on right after it's had a slowdown or signing off before one happens...)
But yeah, hopefully any slowdowns that do occur will vanish in a few days after all the settings (like DNS) are fully adjusted/propagated.
Seems so, just got to do a few adjustments but everything is looking good. Just let me know here if there are any issues. if you hit a bad slow down try and get a tracert (type that into your cmd along with gamingforce.us) and post the results.