Easy Profile - Joomla Extension

We have our own code that registers users into the system and we notice that using core Joomla code easy profile doesn't align. For example, we have to run our code once (updates joomla user system) then go manually run sync in the backend for easy profile (creates records in that system) then go run our code again (update records in easy profile). So it's disjoint / broken.

Since it isn't during standard joomla registration do we have to manually trigger the events/plugins tied to that like onUserSave for example and it will work and cause easy profile to perform necessary updates/sync in real time? It's not clear from the docs and there doesn't be an easy way to trigger a sync either.

Please advise the best route. It's a cron job that reads CSV files added through FTP to add/update/remove users from Joomla so it's a custom script + core joomla code and using Easy Profile objects from documentation seems to have no effect and we noticed this disconnect in the system and found a manual workaround.

So we have the correct user object from your docs but updates and etc. in the script are saying they succeed but doing nothing because I guess our create doesn't actually sync with your database records.