Autodesk 3D MAX with SEP 12

I Have 2 user having  3d max with win xp sp2 and SEP 12( SEPM 12 RU1 MP1). They have a performance issue when renderimg graphics  with 3d max. After uninstalling SEP it was ok. 

I have installed Virus and Spyware Protection,Proactive and Network Thret protection with Symantec for them. Alos have blocked there USB using SEP

They are requesting Kaspersky for ther client sice Symantec make there 3d max rendering slow. But I haven't tryied Kespersky yet.

Is there any fine tune with Symantec for graphc software. Please Help....