Does Real Time/Live Data need to be like the example?

[PanagiotisJunMobileDev]

https://github.com/jjoe64/GraphView/wiki/Realtime-chart
What if i create threads or handler? or service listener register interface etc? like got services that when they get data they send instantly and these i use to update the graphs etc.

In the past i used threads and handlers and it laged like hell then i used your example in link and it was fine and also its fine with the last way i described. Any ideas why so much lag? i though becase in library when iappend data it uses ArrayList but now it is fine i just dont know why it lags so much and now not.