I am trying to sync Android/media/com.whatsapp/Whatsapp folder with 50K files, but the scanning and the syncthing are very very slow, it took me more than 10 days just to sync 45K (constant sync), when I restart the app the scan takes more than 2 days.
just to compare with a different phone with android 9 takes no more than 2 days for sync, and the scanning takes much faster.
the syncing is through lan with open ports and define tcp link.
what can I do about it? what logs do you want that I will upload? the phone is brand new with graphene os (pixel 5a)