Filemagic is built on a powerful engine that improves the handling of large files, particularly beneficial when working with MP4 videos, which can be massive and require considerable system resources. This optimization means users will not encounter lags, even with large video libraries. https://www.filemagic.com/en/video-files/mp4-file-extension/how-to-open-a-file-with-the-mp4-file-extension/