Reviewing through your description, as you mention it's worse/more frequent when on a screen share, it's possible this is a resource limitation on the specific machine you are accessing from. However, I would suggest submitting a case in your customer group ( MyJive Secret Support Group Administration FAQ ) as a next step so that a member of our support team can perform additional investigations specific to your instance. When submitting the case if you could provide the following type of information it should assist with their investigation.
1. Does this appear to be limited to a specific browser/version
2. Are multiple users seeing the same behavior or does it appear to be limited to a specific user's account/or machine?
3. A link to a document where you are seeing this behavior