Yep.
How busy the CPU in your computer is during the swing has a lot to do with how smooth the meter plays. Because WGT is a Adobe Flash Player based game you will also want to clear the Flash Player Website Privacy Settings panel cache too before you play.
You can clear that cache by right clicking in the PLAY NOW box, click on Global Settings, Delete All, Delete. If you use the Chrome browser you can also right click on any game client page, Global Settings > Delete All > Delete.
However, not e that you only want 1 tab open on your computer when you play, a tab for the WGT game client.
Want a smooth meter?