I too have been having major problems with severe lag both during game play and when loading between strokes.
Hell I have aven been booted from games, with messages stating I never returned in time... loosing matches as a results.
As for the stuttering meter... I have tried every suggestion ever made to me wi regards to flash and browsers amd nothing really helped until I recently changed browsers...
Okay, IE was okay but crashes after you apply systems updates, and takes a while to then resolve the issues. Chrome was only good for the Ads and Videos and nothing else,
Now after reading something interesting, I have downloaded and installed, Maaxthon 3, and the only issue I have encountered is on new years day, the system logged me out a couple of time and the only way I could get back on, was to restart my system???
So horses for courses, and as someone else has already said... trial and error as we all have problems and they are resolved in a variety of ways.
Cheers and happy hitting.