Hi flori
It might be down to a couple of things I made a patch with the changes that might affect the playback.
first of all, you don’t need to check if the video is at the end of the duration to have it loop, just set the duration to eg. 99999999 , a much larger number than the length of the longest clip you can imagine and set loop to 1.
then you can try to set the VideoTexture Wait For Frame to 0 so you don’t slow down the main loop to wait for each frame of the video clip.
I can of course not test with your video clip so you can try the patch attached here.
sunep