About the delay of the system by raising the sampling rate in Simulink

I'm trying to play sound by using simulink. The problems would occur when I try to set the sample rate as 50kHz. The Problem is that the system would be too late. For example, I set the simulate time as 3 secounds but the system took 10 secounds or more. I'm using 'Sine Wave' block and 'Audio Device Writer' block to play sine wave. I have no ideas the reason why this problem ocuur. In future, I wanna try to get a accceleration sensor's data from NI USB6212 by using 'Analog Input' block while playing sound in Simulink.