Microsoft has done the unimaginable! They have released a preview version of the PC Xbox app that allows you to completely customize the install location and removes the restrictions to edit files for customization. This is game changing for a couple reasons. First, we can add a custom wheel to the game for the AF2 and have the game recognize it, second we can specify the parameters of the AF2 so that the FFB works as expected between FH5 and the AF2.
I am not certain this will get us any closer to a framerate issue fix, but what it will do, is allow us to use Forzaemuwheel in the meantime, but with the correct AF2 parameters being passed on to the vjoy wrapper, so it should actually feel right!
Below is a link to the instructions to use the new Xbox app, I already tried it and moved the game, I've uploaded the 2 directories of note and will link them below as well. Now, about the only thing I need is some assistance from Bernard, or another AF2 insider, who can provide the best guess settings for the AF2 FFB model within the parameters provided on the .xml of the game. If someone can give me that info, I'll put the files together with the vjoy VID/PID and create a wheel model etc. and share the info.
the folder "wheeltunablesettingspc" is the primary folder of interest at this point, if anyone can give a gander at the options, and either make a file, or give me the parameters, i'll make the file. I've tested tis all already, it works. A few more things you have to do to make the game pick up the files, but it's all doable.