Generating a continuos signal with matlab and NI device

Question

im working on a transmitter with a Ni Daq and i have a little problem. I generate a period of my signal and i get it out with a queue output and i put a listener to call again the queue output, but this process take 0.1 seconds (call again the queue), so this is a big delay for a 1KHz signal for example, so how can i reduce this delay.

Here is my code :

clc;
clear all;
clc;

s = daq.createSession('ni');
s.addAnalogOutputChannel('Dev1',0,'Voltage');
s.IsContinuous = true;
fs=1000;
quality= 15;
fd=48000;
fs= fd * quality;
s.Rate = fs;
n=1;
A= 2;
y1=0;
y2=0;
wo= 2*pi*(fd/fs);
x=A*sin(wo);
pcos= 2*cos(wo);
out = [];
tic();
while(n<=quality),
    y= ((x)+(pcos*y1)-(y2));
    y2=y1;
    y1=y;
    out(n,1) = y+2.1;
    x=0;
    n=n+1;
end
toc()
plot(out,'*r');
grid on;
s.NotifyWhenScansQueuedBelow = lim;
lh = addlistener(s,'DataRequired', ...
        @(src,event) src.queueOutputData(out)); % Here is the delay
queueOutputData(s,out) 
startBackground(s);