Once colon cancer reaches the lymp nodes goes it spread more quicly?

Possibly: If there are no other signs of spread, an involved node does increase risk of recurrence. There are other factors such as grade, and cancer mutations that are also factors. The rate of spread is not determined by an involved node. So we can't predict how fast it will spread from the nodes alonr.

It can: The more correct way of looking at this is if colon cancer if found in the lymph nodes at the time of surgery, this suggests that surgery alone may not be able to prevent the disease from spreading elsewhere. Chemotherapy may be needed and also a careful search should be done to see if the cancer has already spread to other places like the liver.