I am new to Garmin. I recently acquired a Forerunner 965. I am also brand new to running. Therefore, I use the suggested daily workout religiously. However, my Forerunner 965, keeps telling me I am running too fast, when I am to close walking. This morning's example. I was supposed to run at 7.10km/h, however at my slowest the watch keeps telling me I am going at 5.20km/h. When I walk the inverse happens - too slow. Is this normal?