Getting too low framerate while using videoplayer

Hello, interestingly im gettin 1 frame for 3 secs while im processing the data live in the video player.

my code is below:

    clear all;
clc;
vid = imaq.VideoDevice('winvideo',2, 'YUY2_1280x720', 'ROI', [1 1 1280 720],'ReturnedColorSpace', 'rgb');
vidInfo = imaqhwinfo(vid);
PositionVector= vision.ShapeInserter('Shape','Lines','LineWidth',8);
TargetVector=vision.ShapeInserter('Shape','Lines','LineWidth',8);
Angle = vision.TextInserter('Text', 'Theta: %d','Location',[7 2],'Color', [1 0 0],'FontSize', 12);
blob=vision.BlobAnalysis('AreaOutputPort', false,'CentroidOutputPort', true,'MaximumCount', 2);
VideoIn = vision.VideoPlayer('Name', 'pipi');
p_position=[0,0];
target=[1200 60];
while(1)
        imaq=step(vid);
        imaq=flipdim(imaq,2);
        IMG=imaq;
        imaq=imsubtract(imaq(:,:,3),rgb2gray(imaq));
        imaq=medfilt2(imaq,[15,15]);
        imaq=im2bw(imaq,0.1);
        robotCoordinates=step(blob,imaq);
        IMG(1:20,1:165,:) = 0; 
        v=[p_position(1,1)-robotCoordinates(1,1) p_position(1,2)-robotCoordinates(1,2)].*[1 -1];
        target_v=[target(1,1)-robotCoordinates(1,1) target(1,2)-robotCoordinates(1,2)].*[1 -1];
        theta=(acos(dot(v,target_v)/(norm(v)*norm(target_v))));
        theta=radtodeg(theta);
        vidIn = step(PositionVector,IMG,[int16(robotCoordinates),int16(p_position)]);
        vidIn= step(TargetVector,vidIn,[int16(robotCoordinates),int16(target)]);
        vidIn= step(Angle,vidIn,int8(theta));
        step(VideoIn,vidIn);
        p_position=robotCoordinates;
end

[Jan]

What is your question?