HTML5-Scorm Packages with Video loads very slowly


at the last minute we are updating our learning courses from Flash to HTML5.

Our learning Courses consist of several videos (each slide one video). I recognized that the loading time of the slide in a HTML5 Scorm Package is much longer than before in the Flash Scorm Package, although the flash Package is much bigger (488MB) than the HTML5 Package (306MB)

Is the HTML5 Package so slow because MP4 videos weren’t streamed, but FLV videos did?
Do you have any idea how to improve the loading time? I already decreased the video quality.

Thank you in advance!

Best regards,


Maybe Flash preloads videos so the loading time is reduced. ActivePresenter HTML5 only loads the video when loading the slide which contains the video.
Unfortunately, there is no workaround to improve loading time at the moment. We are working on this issue and hopefully it will be addressed soon.


Hi again,
we have the loading time of videos under control after reducing the video size.

But we have several issues with the RAM now: Our learning courses start without any problems, but after some minutes and video slides, the videos weren’t loaded anymore. Only the timeline moves on, but the screen is white. The task manager shows growing used RAM for the browser and after it gets abound 1.3 GB the videos werent’ loaded anymore.

Unfortunately we are still using the Internet Explorer 11 und the update on Chromium Edge needs some more month.

Actually we aren’t sure, what is the reason for the problem. We suppose IE11 can’t handle the videos of Active Presenter projects correctly and doesn’t unblock the RAM of already seen video slides. But we don’t now, why this happen and how to solve this problem.
Do you have any idea, what is the reason for the problem?

Thank you very much in advance!


It would be helpful if you can share project having the issue and its external data folder named in the PROJECT_FILE_files (if any) to so that we can check.
If these files are large, you can upload them to a cloud storage site like Google Drive then send the download link to us.



Thanks for sharing the file.
We have checked on our computers but could not reproduce the problem. I guess that something went wrong with Windows video decoder on your machine (which Internet Explorer relies on) so the issue. Can you please try updating Windows and Internet Explorer to see if it helps?