Lightweight library. With no metadata.

I have a problem with my library. I first tried theTvDB and moviedb agents. But Plex is downloading ALL available images for the shows (poster, artwork, season and episodes) and movies.

For 10 tv shows I ended up with ~500Mb metadata. I do not want that. So I picked the personal metadata. Which looked much better. I ended up with not even 1Mb. But the update mechanism is still nuts. It feels like it scans the files for images and uses them instead. So first this takes a lot of time and I do not want that. Same applies for movies.

I disabled video preview thumbnails and disabled local media agent. The last option seems to have no effect at all.

Why do I want that? I have Plex installed on my synology nas. To watch my video files I use Kodi on TV and Plex for my iPad.

The Kodi library is stored on the PI so that does not bother me at all. And the library is only 85MB big and contains 20 TV shows and 10 Movies.

The plex library is stored on the NAS. I do not want to waste that much space on the NAS. 500MB does not sound much, but I did not even started to copy all my data.

Futhermore, Kodi is much faster in updating the library. So what I want is to handle the meta data by myself although this is much more work.

Any ideas?