Everytime I start Gog Galaxy I need to wait atleast between 15- 20 minutes until it starts.

Taskmanager: Gog Update App is always open but is doing almost nothing

All other game services I use work fine, I use Bitdefender Anti Virus.

Thats really annoying, tried to reinstall, didnt work.

Does anyone know how to fix that?

Dupe thread. We're following up here:

https://www.gog.com/forum/general/gog_galaxy_is_very_slow_takes_ages_to_start/page1