My internet is working perfectly fine. Gigabit fiber internet with 9ms latency. And no I'm not on VPN. Yet I'm losing 0.4 seconds per premove. I've lost a lot of games because of that lately. See screenshot of time used. I'm black in this particular game.
Premoves take a minimum of 0.1 second but can take longer if there's too much lag between you and the site live server
There are some things you can do to minimize issues.
https://support.chess.com/en/articles/8652402-how-can-i-optimize-my-online-chess-performance
https://support.chess.com/en/articles/8584209-how-do-i-fix-my-disconnect-lag-issues
My internet is working perfectly fine. Gigabit fiber internet with 9ms latency. And no I'm not on VPN. Yet I'm losing 0.4 seconds per premove. I've lost a lot of games because of that lately. See screenshot of time used. I'm black in this particular game.