I used to upload a video of 60 seconds, which is 199 megabytes, but it takes 30 minutes to upload. This is really not good; I cannot imagine if I upload 1 GB. I also have troubles when I’m editing; it’s slow and buggy. About b-roll, animated subtitles are good. I use FlexClip, and I don’t have this trouble with speed on the website. If I use Minvo, it's like I'm ready to wait hours to make only one video. This is not good when you want to create a lot of videos. I cannot imagine needing to do 10 videos; I would need days to do it with Minvo. Please improve the speed.