No idea why it's happening but I can confirm your observation.
I have a fast (wired) connection and wondered what's going on. Task manager revealed nothing running in the background and a reboot didn't help either.
Other sites are functioning at the correct speed, it's just Chess.com.
Yep, everything else is working perfectly. Only happens on this site. Regularly too.
same here too =(
yup, I agree, great connection, slow chess.com
All Europeans, so far.
EDIT: Now we have an American, as well.
Once again it's taking ages to submit a move, anyone know why this happens every few days?