hello_hello

Hi, I just started using subtitles with VideoPad, and I have a problem. Whenever I add subtitles, the video it's over lags and goes in slow motion. When I hide the subtitles it's fine, but I need the subtitles. How do I fix this? Also, I added an overlay picture and now my video quality has become really poor compared to the HD it originally was. Will the quality go back to normal when I'm done with my video project?