Cant send too many NUI messages before lagging other resources

So i want to make a speedometer, im sending speed information every 50 ms (20 times per second)
Other resources like the chat doenst seem to like this, their interfaces are laggy/unresponsive.
How can i make a responsive speedometer? Like, i tried sending messages every 250ms, it works fine, but the speedometer isnt really useful updating only 4 times per second.