@David Blaylock If you open the network properties (right click on a network, bottom option) you will find a tabpage with AGV Types where you can define Path Classes (so types of paths) standard there are already 3 types defined (straight, curved and spur) and you can define your own as well. In the table below you can enter the speeds for each type of path for forward and reverse speeds and also different speeds for loaded or empty (or any other state or load type you want to define, for instance lifted or lowered or something similar). See this picture:

Then the last thing you have to do is click on a path section and tell it what Path Class it is. And you can do that in the quick properties like this:

So to change the speed between 2 points make it a separate section and make it the appropriate path class.