Hello. Have you tried some of the following to assist you?
-Close out any programs running in the background. Close additional tabs as well.
-Try playing in normal sized, do not play in full screen.
-Minimize the WGT Page but do not close it.
These are a few steps that can help assist you with your Swing Meter. I've tested them out myself and they do have an impact. You can contact Customer Support for additional assist if you continue to have issues.
-WGTyphoon