It’s not really a problem. You can walk at your own pace almost all the time because we have enough guides to support trekkers of all speeds. Occasionally, for safety reasons, the leader of the trek may pull the group together (e.g. in bad weather or in a difficult section of the trek, including crossing the Nithal Thach stream crossing section and the Lamkhaga base camp to Jalandhari Gad stretch) but in general, the group can string out and everyone finds their own comfortable walking pace.
What if I’m too slow for the Lamkhaga group?