2019 and I'm having the same problem with lag!! I'm losing in 1+0 to terrible players because I have to pre-move EVERY SINGLE MOVE and I still lose on time!!!! WORTHLESS!!! Other free chess websites, you know which, don't have this problem. Chess.com is virtually unplayable in fast time controls.
Lag in bullet games

Yeah bullet on Chess.com is one of the least enjoyable things you can do. The time players are miserable and the community is toxic. I'd just stay away from it.

I cant play bullet on this site anymore. I'm constantly getting in time scrambles and losing time even though i'm pre-moving often against laggy opponents. I don't have this issue on any other chess site.
I literally was in a match for my life and next thing you know I get hit with lag that lasted 3 minutes in a 10 minute game with 5 minutes to spare. Like god damn is this game annoying. Like I'm going to lose my elo if this game lags. Even in bullet games where 1 minute is all you get. It lags like hell. It's like 40000 ping or something.
Bullet is unplayable I lose games on time while my opponent still has 53s left on the clock. I'm moving instantly or using premove but I lose 1 or 2 seconds every turn 30 moves into the game = loss. I am rated 500 bullet. My OTB rating is 125 ECF or roughly 1600. Blitz 1400. Rapid 1450 standard 1600. Bullet 500!!