i know that recent apps can get the RSSI data continuously from beacon.
but i need to get the data much faster.

it may sounds weird that "much faster". 
but if you watch this video link: <http://www.youtube.com/watch?v=4B1J1YPQ5_g>
(you can watch the video from 4:25)

you will see the scene that the app shows immediate changes of 3 colors on screen (red, green blue), when it approaches to one of each beacons.

actually, i tried to test my beacons accuracy like the way they did in Android.
but my app shows very slow color changes. 

for example, when i need the RSSI value from 54 to 80, my app should continuously show it on my screen like this 54, 55, 56, 57, 58, 59, 60, ..... 78, 79, 80 as i'm getting far away from beacons.

but in my test, it wasn't like that. it just showed RSSI values separately like 54, 57, 59, 77, 80.

i guess, the problem is that even if i continuously get the RSSI, i need to receive it much faster to show the changes of colors like the video.

is there any way to solve my problem??

am i missing something in here??