Background loading and connectivity speed are related. If you have a slow connection, and you have background loading enabled on WGT, or if you are loading another internet page, app etc... you will see stuttering in the swing meter. So it is counter intuitive but to minimize swing meter stuttering on a slow connection you should disable background loading in the option panel. This will increase loading times but minimize stuttering.
Also if you have an application writing to your hard drive it is known to cause meter stutters.
Tibbets - your machine specs are indeed strong, however we suspect there is something else affecting your meter performance- maybe another app, browser plug-in, anti-virus, firewall configuration, etc... If you want please email us and we can dig into this further.