You should be able to increase the update rate of the graph by adjusting the sample rate. If you want about 10 samples/second sent to the phone, you could set the meter to use a 32 sample buffer and sample at 250Hz. This would give you about 8 samples per second over the air. Does that do what you want it to?
I haven’t used the Measurement Computing example. If you have a video reference I would happily take a look.