Opportunity Marketplace Scrolling Issue

Summary:

As an end user and I go to Me>Opportunity Marketplace>Filter is set to 'All' under 'Opportunity'

Content (please ensure you mask any confidential information):

Whenever the end user is scrolling through the list of open jobs in Opportunity Marketplace, it seems that if they are scrolling fast, the list of jobs tend to jump back up to the previous set of jobs on the list and appear that there are duplicate jobs, even though there are not. Is this a web site issue? An Oracle issue? Is it the system response, that when an end user is scrolling too fast, the system doesn't have time to catch up and jumps back up a row or two before it can load more data? Just curious