There are 2 timeouts involved when loading the OFM Flash component.
OFM_SETTINGS_TIMEOUT.
Timeout settings are especially important when using firefox, since it may happen the browser doesn't notify the Flash player when a resource can't be found. So when you don't add a UI configuration file to your setup, the component may hang for 25 seconds; To solve this, you can override the OFM_SETTINGS_TIMEOUT FlashVar and set it to a very low value (1000 for example).