Desiring to use the Lap Count overlay. I notice when using it it starts at 1 the START and then increments from that point; so when you COMPLETE your 1st lap - the counter increments to two.
That is like being born and being aged ONE on the day of your birth, when one doesn't become 1 year old until one has completed one year of life.
The Lap Counter should start at 0 ZERO and at the COMPLETION of the lap increment to 1.
In my form of competition there is a Pace Lap that precedes the start of competition, ideally in this situation the Lap Counter would start at -1 at the start of the Pace Lap, increment to 0 at the end of the Pace Lap which is the Start of the competition lap and increment to 1 at the completion of the 1st competition lap.