I think they have had this problem for years. Even Magnus Carlsen commented on the interface following an armaggedon game on chess.com. He said something like his pieces were moving in slow motion or something like that. That's when I realized it wasn't just me!
Trouble is, I find it easiest to get games on chess.com. Less action on the other servers right now.
I also have repeated lock ups.... I can most time hear the move of my opponent, but can't see it!!! And then can't move until I close everything and reopen. REALY REALY frustrating.
Please help Support