QbitTorrent limits?

Hi!

I seem to have reach some kind of limit with my bittorrent client.

When starting the Qbit client it starts sharing all torrents alright (reported on tracker), but after a short while it begin dropping torrents and after a while there isn´t any torrents reported as shared.

The client seems running fine though. But I don´t know how to check otherwise than through the tracker stats.

 I share quite a lot, and since the issue appear lately I wonder if I ran out of ram or something. The client is quite slow and so on.

I tried removing severeal torrents though, without any luck.