Text is always done pretty immediate. FlowImages follow the following process "flow": Check if image cached, if not build cache item, load cache. If it has to build the cache item the load process can take a second to complete. If you entering a platform that doesn't have ANY cache items it can take a bit for the cache process to cache everything and load it.
The other views did NOT have the same dispose logic in them as WallView which could have affected memory usage. That has been corrected for the next release.