Lightroom Desktop Sync very slow

Hi! I recently migrated by 1.5TB Lightroom Classic Library to Desktop, and while migration is done, sync is taking forever. I have 300MBPs upload speed so this shouldn't be an issue. Quick math should mean that the sync should be done in under 12 hours. However it's been a few days now and I've been monitoring how many images are left to sync... and it's a crawl. It took 2 days to go through 15,000 images. Any ideas on how to speed this up? Will a VPN help? I'm in the South East Asia and wondering where Adobe servers are located in my region.

I'm on a Macbook Pro M1