Route taken by Robo Vacuum when cleaning a single room

When the Robo Vacuum leaves the charging station for a single room cleaning it does not take the most direct route. It does take the same route when cleaning this one one room, but it is very much out of the way and not a direct line. Is there anyway to trouble shoot this issue.

Not a big deal, but it could be much more efficient and probably save 2 minutes of cleaning as it works its way towards the designated room for cleaning.