A number of configuration options can affect the load process. This is a quick list of them:
autoload_dynamic_modules (Minion)
disable_modules (Minion)
disable_returners (Minion)
enable_zip_modules (Minion)
extension_modules (Master)
whitelist_modules (Minion)
grains_dirs (Minion)
providers (Minion)
render_dirs (Minion)
returner_dirs (Minion)
runner_dirs (Master)
states_dirs (Minion)
utils_dirs (Minion)