Testing has shown that using Symantec Protection for SharePoint Server 2013 adds substantial scanning overhead when uploading documents to SharePoint as compared to when scan on upload is turned off. This impacts users that need to upload large number of documents into SharePoint. Testing also showed that the scan time was proportionate to the size of the document being scanned. Further testing showed that the Symantec Engine scan time was higher than the scan time taken by Microsoft Forefront Endpoint Protection when scanning the same document.
Case 09239350 was raised with Symantec Technical support to investigate this and it was suggested that the only way scan performance could be improved is by changing the product code. This request is being raised to request the product team to improve the scan performance of the product.