SQL Server Reporting Services is extremely slow

Version 1

    Details

    Reporting Services is extremely slow, and executing a report in HEAT can take up to a minute.

    It occurs not only with HEAT but also opening the SSRS website independently, for example accessing the SSRS url in http://localhost/Reports (or any other configured).



    Resolution

    The antivirus could affect the performance of SQL Server Reporting Services:

    1.- General exclusions for SQL Server
    http://blogs.technet.com/technet_blog_images/b/sql_server_sizing_ha_and_performance_hints/archive/2014/01/16/sql-server-and-anti-virus-best-practices-recommendations-for-exlusion-lists-for-anti-virus-scanner.aspx

    2.- Specifically for McAfee VirusScan: URL Exclusions (adding the URL used in HEAT)
    https://kc.mcafee.com/corporate/index?page=content&id=KB65382