There are few things to consider before to record a path to get the maximum from the app without problem.
1) The place. Usually if you are on mountains and you have good open space around you the te feature GPS ACCURACY will help you to have a better accuracy when receive the data from all satellites
2) Your Gps device inside your smartphone. There are several phone that dont have a great gps and this will impact with your recorded track.
3) You have enought battery charge for your track
Considering this few things, will help you to go a good track to share with other friend