The Access support team will need to investigate and resolve the performance issue. If you have trouble contacting the support team, see Get support in Access Document. It would be helpful to include the following information if known:
Is the user using Workspace Document or Access Document Management? You can confirm this by following these steps:
Log in to your Dimensions account.
Click System, then click Options.
Click System Control Options.
Note the URL of the ADM web service.
If the URL is https://document.accessacloud.com, you are using Workspace Document. Otherwise, you are using Access Document Management (ADM).
If the user goes to another website such as www.bbc.co.uk, is it slow?