I'm having severe lag that was server side (all our players experienced the same waves of disconnection at the same times, we have players from the east coast to the midwest, browsers and systems vary) while running CoS - Only CoS - and it wasn't just the werewolf page. I'm using the Firefox Browser. I'm also using both DL and AFoW - which seems to lag out this module as opposed to others I run. I, too, have copied it - I've even rebuilt it from the ground up and moved all my players over to it - and still the same happens. Our last game was Saturday, 6/15/19, 6pm to 10pm Eastern US time. We were having lag waves that made our game unbearably unplayable. Our average intervals were 20 secs uptime before 30-40 seconds of the yellow bar in the top of the browser, sometimes added to that was the red disconnect. I find myself hitting the API Restart Sandbox button regularly - just for 20 more seconds of uptime. Seeing this issue makes me wonder if there is something native to CoS - an update to the module or its coding - that is causing severe issues with passing bandwidth thresholds for browsers. My CoS load times are as ridiculous as the OP, but we actually get there in about 10 mins. I learned to treat entering my campaign as most people checked their email back in the 56k dialup AOL days: start it, grab a coffee, get a bathroom break in, make a sandwich ... come back, wait 2 minutes, your game will be ready. I'll get a console log next time this happens. But I think this was all Firebase or Roll20 server side - only because we all experienced the issue simultaneously. I was having it from 2am - 5am the same day when I was doing some work on the campaign, but I thought at that time it was just my equipment/ something I was doing.