The partwizard.cfg file of PartWizard stores volatile data. ModuleManager vacuums partwizard.cfg file into its config cache, which is completely unnecessary because the cache is meant for constant configs. Any change to this file forces ModuleManager to rebuild its cache on each game start. If you move the path for the partwizard.cfg to the /PartWizard/PluginData MM will avoid caching that folder, this will speed up the game loading time for all the users.

Thanks! I've made the change and will test it for the next release.