Hello mitton. Thanks for your report. What region are you located in? You may want to review our BABOON article and our guide on [url=https://www.bungie.net/en/Help/Troubleshoot?oid=13603]improving latency and packet loss[/url] to see if that might help with your issue.
I am in NA, east coast. I have viewed the article and followed every step and the issue was not resolved.