Symantec Antivirus exclude files names with more than 3 characters in the file type

Hey guys we have been told our antivirus is causingsignificant slowdown in the opening of solidworks models due to ourSymantec antivirus not being able to exclude files names with morethan 3 characters in the file extension. Since turing off theantivirus is not an option does anybody know if there is a bypassor a setting in symantec to fix this? We have been unsuccessfulfinding anything. Will this really cause a significant increase inthe opening of assemblies?

StevenSolidworksAdministration