I read a lot about bad GPS performance after I had a completely false recording.
Next run I noticed improvement after I changed from Smart recording to Every second, but it must have been also the time shift, because the first recording was completely off
What bugs me is, that apparently the watch can communicate with GPS, Galileo and GLONAS, but you can only pick GPS+Galileo and GPS+GLONAS
The only disadvantage I see for using all 3 is higher battery drain, but why not leave it up to the user? I prefer charging my watch more often to having nonsense measurements.
Here I came to the lake and ran 2 rounds. 