Autodesk has released Service Pack 1 for both versions of 3ds Max 2010 fixing numerous problems.
The latest Service Pack from Autodesk for Autodesk® 3ds Max® 2010 and Autodesk® 3ds Max® Design 2010 software includes nearly 30 fixes for issues with undo, performance, responsiveness, viewports, material workflow, and mental ray® software. Specific areas addressed are Biped, Bitmap Pager, Bitmap Proxies, Containers, Edit Poly, Interoperability, Licensing, Materials, mental ray, Particle Flow, Performance, Photometric Lights, ProOptimizer, Render To Texture (RTT), Rendering, UVW Unwrap, and Viewports.
As far as we know this update fixes the render speed issues 2010 had compared to 2009.
Download Autodesk 3ds Max 2010 Service Pack 1
Download Autodesk 3ds Max Design 2010 Service Pack 1