Thank you for looking into this.
I create a one page Virtual Reality Project in Adobe Captivate 2019.
I inserted a 360 degree video exported by Insta360 Studio 2019.
This video was taken in 1080p, exported as 1920 x 960 resolution and 100Mbps.
This video was able to be played smoothly all all players.
However, when I imported this video into Adobe Captivate 2019 and review it as a one page project, it turned out to be very laggy.
Similarly, when I exported this one page project as HTML5, the final product is also very laggy.
I didn't add anything such as Hotspot to the 360 degree video within or outside Adobe Captivate 2019.
May I know why is the final product so laggy when the video is so smooth on all the other players?
How big was the file you imported into Captivate and how long is your video on the timeline?
360 video can produce huge file size due to there need to capture a full 360 degree of video at a very high bit-rate for visual fidelity.
I would say that you should not bother using VR videos inside Captivate projects and after publishing - inside SCORM files. Why Adobe even chooses to let users spend time trying to get work - well maybe somebody else could could explain.
I always use a CDN with an adaptive HTML5 video player when adding video to my courses.
I did successfully inset 360 video in CP projects, but try to limit the file size as with all Captivate assets. Since you never know which device and bandwidth will be used.