Same here. My meter has been surprisingly good.
Chapman, It's not necessary to clear the browser cache on a daily basis. If your using FireFox for your browser, click tools - options - advanced - and set the storage to 250MB of space or better for your offline storage.
Don't clear your browser cache until the next WGT product update. Try clearing your flash cache and reset your game options. You should get a better meter after a few completed rounds. Also, use Game Booster if aren't using it already. It's a simple program to use.