What options are there to reduce the computation time?
There are many ways to reduce the overall computation time. A combination of the computer hardware, operating system and optimizations to the model geometry are all part of a solution.
If the problem relates to your computer's capability, read the System Requirements section of the Pathfinder User Manual.
For larger models with detailed or large navigation surfaces, or models with many 10's of thousands of occupants, see the System Memory Issues section of the Troubleshooting section of the Pathfinder User Manual.
If the model has many fine details with round or unique shapes, read Optimize Navigation Geometry.