I have a very large file. About 16 minutes long and need to export it. I have followed every YouTube tutorial under the sun and cannot figure out how to keep the image and video quality high when exporting. I have tried changing the presets to 1920 X 1080 but still my images and videos are grainy. The sound quality is great but I cannot get this to work the way I need it to. Really needing some guidance here. Thanks All!