Question about Safecode optimizations

Hello,

I have been using Safecode to add bounds checks to some programs and am getting very high running times for those programs. In average, the slowdown is up by a factor of 30, sometimes even 90. Is there a way to improve on this?

I have followed the instructions about installing and using the Link Time Optimizer on this page: http://safecode.cs.illinois.edu/docs/Install.html

Still, the runtime of the compiled files is about the same.

Are there any additional instructions that I am missing? Any other options that may be needed?

Thank you
Rigel