VSDC problem



Everytime I make an edit to my video on VSDC , the output video becomes choppy. So im recording a video using a screen video recorder (fonepaw) the video (file) is saved as a mp4. I import the video into VSDC, then make a slight edit, I then export the project as a AVI or MPG, once the output video is done the results of the video become choppy, no matter what I try to do, its choppy. The original file in is not choppy and runs very smooth.