If you want to send your video via email or upload it, you may find that your video file size is huge. Uploading or sending huge files is impractical and slow. There are several suggestions.
1.To send via email, upload your video to something like Youtube and then send people a link to the video instead of sending the actual video file.
2.Go into the video settings and adjust to a lower quality. Lower quality videos will be smaller in size.